Salvete everyone, You may have seen some of my recent threads on another section of this forum, and I thank you for reading them, and I hope you took something away. I am a nineteen year old student living in England, and I have been dating a twenty-eight year old (her birthday was a matter of days ago) Ukrainian girl since late February. We went 'official' about a month ago, and despite both having busy lives we have spent a lot of time together including consecutive days staying over at each other's houses (until I return to university I am living at home which, by public transport, is about an hour away and she lives with her mother, brother and two dogs). Despite me being as 'young' as I am, I am very intellectual and intelligent, and I am very mature and a lot of the usual pursuits of guys my age (i.e. chasing tail, drinking and partying) do not have much allure for me. I read extensively, I work out regularly and I am working on my own novel, among other things, and she too reads a great deal, exercises a lot and looks stunning (she used to model extensively, and I mistook her for twenty when we met, and she has been mistaken for as young as eighteen). Think Elsa from Frozen and you have a mental picture of what she looks like. Across our relationship, she has expressed concern about the age gap, and has flip-flopped (for lack of a better term) between thinking it is a little too much and not caring about it whatsoever, saying she feels young around me (even though she still is) and the fact that I am leading, direct and masculine and take the lead most of the time in making decisions and so forth helps greatly. In this regard, I have came a long, long way, as even a few years ago my autism and social anxiety was significant, certainly not helped by PMO. I strongly suspect that the latter here is a considerable influence on my insecurity, which I will elaborate on in a moment. I struggled with girls for a long time, and often doubted my worth regarding being worthy and enough for a girl. Self-improvement and time changed a lot of that, but it lingers still. Even though we just yesterday and the day after spend all of that time together - she also said or the first time that she loved me when we were having sex, all it takes is not getting a response for a text message sent late last night into the afternoon of today (I write this at around 2:30 PM) to spark worry, anxiety and insecurity. It feels like something I am having to battle very often. She couldn't stop covering me in hugs, kisses and so on over the last two days, in general we cannot keep our hands off each other, and on the whole I am as good a boyfriend as I can possibly be - we often split on dates for food, drink and so on, and where it is reasonable I will pick up the tab. Others times she will. I know that women are emotionally-centred human beings, so feelings can change and sometimes quite drastically. Taking all the things we have done together, the chapters we have written (that sounds cringe-worthy, I acknowledge) and how much she has invested into me and into us, I know that our relationship could not be better or stronger. She's been making plans and suggesting things for us to do as far ahead as September. All because I do not hear from her for a short while it does not mean the relationship has collapsed. Being a student of ancient history and the classics, where we touch on archaeology, I am well aware of the fact that absence of evidence is not evidence of absence. It is not as if I respond instantly to her texts or calls; I leave responding to her at least 10-15 minutes when I am busy with something, and often much long, and she does the same, being busy with her job as well as her own YouTube channel, blog and so on. She's an awesome girlfriend too - very feminine, beautiful, has values and standards and I can have an engaging conversation with her on so many topics. Two days ago when we went for dinner we got talking about Christianity and having learnt up on this topic (not deeply, but enough) I got talking, and she randomly leaned over and started kissing me, saying that seeing and listening to me talk so intelligently was very attractive. Our chemistry in person is great, and we practically do not argue, and often finish each other's sentences and thoughts. There are no alarm flags as far as I can see, and I am on top of my game academically, socially, physically and elsewhere, yet still I feel insecurity bubbling and arising over small things that really are not a big deal and that I know are not a big deal. I am not being a needy guy who constantly blows up her phone, calls her compulsively and buys her gifts constantly. What irritates me immensely is looking at my phone, for example, and hours after sending a text the last evening and it is, say, nearly 5 PM and I have not had a text back and feeling that knot of anxiety bloom in my stomach. In the beginning, when we were just dating, having fun and sleeping together, I did not feel the insecurity that I do now; initially we were just sleeping together casually, and whilst I started to see her as someone I could enter a long-term relationship with, she thought I saw both of us as only having fun together, nothing more serious than that. Her views on that changed when I began spending more time with her and invited her to spend my birthday with me and meet my parents. In a surprising turn of events, my own mother met her mother and brother last night when they were walking their two dogs when my mother was dropping her off at home as it was getting late. She has told me that her mother, out of all the men she has dated, she likes the sound of me the most, and I know that for Eastern European girls family and their approval thereof is very important. She has expressed a desire to start a family in time, and you could say that she has caught 'baby-rabies'. I am only about to begin my second year of university, and I will graduate in 2020. I have thought long and hard about this, and I am honest when I say that I would consider having children with her when the time feels right, and in truth I feel little pull towards scoring notches on my bedpost. I want to build a legacy, create, give back to the world, and improve myself in every area. Perhaps this is where part of my insecurity comes from, but I am certain of little in this regard. It is important to note that I know that, if this relationship was to end, I can and would find other women to date, and I know my value and I know I am very attractive as a man and human being. It is not that I think she is the 'only one'. I know this has been a long post, and I am thankful for the advice offered by any of you.