Alright, well, how do you feel about this girl in real life? If you think you feel attraction towards her, you should consider figuring that out internally. It would really hurt your girlfriend if she found out you had feelings for someone else as well. I’d also like to emphasize I’m really proud of you for putting yourself out there!! Dealing with these topics are difficult, so I commend you :) But yea… try and take control of your thoughts! Whenever I’ve found myself interested in another person while I was in a relationship, I tried to reverse the roles. How would I feel if my S.O. was with someone else?
Things you can do to take action against these thoughts, are stopping yourself whenever you find yourself thinking of that girl. Try to think of one reason why you like/love your girlfriend instead. Try to remind yourself of fun memories with her, or go on dates more often!
All the best,
itsnuggettime