I can't stop thinking about cheating on my LDR
I 25f have a girlfriend who is 22f, she lives 4 states away and I plan on moving to be with her IRL by the end of next summer. But for now I also have a friend who is EXACTLY my type, and has admitted to liking me multiple times and ive made out with her (this was while me and my girlfriend were on a break, also we were incredibly drunk). We've already established boundaries and she has told me that even if I did try to do something with her she wouldn't do it because she doesn't support cheaters at all.
I trust that I won't do anything but my mind keeps going back to her and times when we were physically close and what may have happened. It doesn't help her sense of humor is saying shockingly flirty things to friends and it just makes me feel things. But we both refuse to drop each other because we are literally best friends and without each other we would be completely lost. I also think the fact she had recently been cheated on by her boyfriend and I was there to comfort her during it might just confuse her and have her associate me with loyalty and safety. I also believe she won't like me for much longer because she is bisexual but has a huge preference for men anyway.
I guess my question is, how do I stop having these thoughts and is there something I can do to also help my friend to stop seeing me in a romantic light?