<human>: Hi, I am in a relationship with a girl who I care dearly about. I would never want to hurt her, and if I did, I'd be devastated. I find her very attractive and we share a sense of humor. There are certain things we don't match up on, but overall we fit great. I could see myself being with her for the long haul.

HOWEVER, I am VERY conscious of other attractive women. I have a VERY strong urge to have sexual adventures with new and exciting women. I am fairly young (25), tall, and notice that women look at me sometimes. And by look, I mean, you know, look! It doesn't help that the sex with my gf, after 2 years, is getting a bit...well, boring. Someone new would be amazing. I'm not interested in finding another long term partner, but just some fun casual sex. 

My current GF is the only gf I've had, because for a long time I was utterly hopeless with women. Then I started learning about what it really takes to be an attractive person, and got good at it, and then landed my gf. I am so grateful for her, but also feel that my newfound abilities with women are sitting idle at a time when I really really want to use them!

Please give me advice. Thank you!

Can you condense the text into three sentences or less?
<bot>: I don't want to leave a girl who I love and care about, but also I don't want to let my youth and all its exciting sexual opportunities pass me by.