Fantasizing Over Coworker

Only spend time with her at the office and spend as little time alone with her as possible. If not possible, only discuss work and general pleasantries. Keep a respectable distance from her when conversing. The main thing is to not lie to yourself and think that the road you were on wasn't going somewhere dangerous to her marriage.

 

Let's be honest here. Even if she did have feelings she would never say or do anything about it since she has that mental block from being married and it's sanctity. I really feel for you. But the only way to get over one person is to go out with other people. Go to meet ups or find a hobby club that has females. Get your mind off of her. Hang in there, you can do this.

Stay clean

 

Remember that she will be less likely to continue flirting if you don't respond positively to it. I'm not saying be rude, mean or cold but if she flirts and you respond in a professional manner, the flirting will end. She may have a bruised ego but that will heal. You have to be kind because you have established a friendly relationship but it only takes a certain look and a certain tone for she gets the hint that flirting is not welcomed. Women do it the men all of the time. Let her know that she is squarely in "friend zone".

 

Since she is married, there is nothing good in approaching her, even she may be interested in you, better you side your way and focus on your work and life, its better to live with a tag of single than home-breaker..
Sometime flirting also goes wrong way, so keep it up at a limit, don't push yourself beyond the boundary just because you are single..
maintain just a colleague relationship with her and don't think about her more than that...
you can't predict whats going on in her mind..just because she is laughing and talking with you doesn't mean that she is interested in you.. we see only what we want to see, so for good of yourself you know the reality just realize it there is no future of your fantasy world....

 

I agree with @ujjing, sometimes the flirting can occur subconsciously. That's how some women are. They consider a normal behavior. Take the professional route. When talking with her if necessary, bring up work topics or subjects that seem flat/neutral.

You can do this. Start seeing other people, the sooner the better.

Stay clean

 

Couldn't help but think of this:

 

Think of it like this: Why are you here on NoFap?

Is it not because you want to regain the control that your sexual urges have taken from you? Which is worse, honestly: watching some porn, or taking actions that could potentially interfere with both a happy marriage and your work?

The latter we can all agree is worse - and that's saying a lot since we all know the negatives of porn. So just like it's not really NoFap if you quit jerking it but keep watching porn - I'd say you're not really sticking to your NoFap ideals if you pursue this either.

See this as simply part of your NoFap challenge. It is perfectly normal to be attracted to someone, to want someone, often someone you can't have. However, you know that pursuing this would be negative, so you make the conscious choice not to fantasise, not to spend extra time around them, not to flirt, etc. Just like avoiding porn, it requires some effort on your part.

 

Things which are forbidden always feel great when you first start off, right before the moment you posses them totally or rather they posses you. Then once you've reached that point of possession you realize the best part was an illusion. It was the forbidden's siren song to lead you into comeplete and utter destruction.

 

you have no other prospects which is why you are solely focusing on this women. you could be just reading to much into things like thinking her behavior is flirty and signs of interest for you while in reality it's just her being friendly. and let's say she is into you she's married you don't wanna do anything where karma down the road unleashes hell on you when you least expect it. instead of spending time with an unavailable women outside of work you can use that same time to be meeting available women, who knows maybe your coworker may know other attractive female friends to hook up up with. but I think the reason your catching feelings for this girl is because you have no other prospects but this girl whose attractive and friendly to you