Girlfriend broke up with me and I'm already looking at other girls.

I'm 18 and in high school and I've completed 20 days of no PMO. I've been off and on doing nofap since July of 2017 usually for a week or two at a time before another relapse. I'm finally tied with my streak that I first had when I started this journey (woohoo!).

My girlfriend broke up with me 5 days ago and to be fair it was only two and a half months, but I'm already well along my way of getting over her. It was a good breakup with no real hard feelings but I expected to feel sad for longer then three or four days. We had a really loving relationship and I really did like her lot.

This is a little strange to me because 2 years ago I broke up with my ex and I wasn't interested in dating for months. I was sad a lot longer and generally had a harder time getting over it all. I've already been thinking about other girls and heck, yesterday a random girl asked me for my number. Maybe getting over a relationship this fast isn't related to nofap but I'm wondering if anyone else has gone through a similar experience. I can really see the difference now that I'm a free agent though. I've definitely garnered more attention from girls and my newfound confident actions have really helped me with that.