My best friend, my LTR and her best friend(girl) went out together. We were at a coffee and I excused myself to go to the toilet. I came back and it was all good until the next day.

The next day I learned from my best friend that while I was at the toilet, my LTR for some reason started talking about our sex life. She told them that she was keeping me on a dry spell for a month and that she didn't found sex interesting anymore. It is true that I haven't fucked her in a month but it's because of some problems I had recently. Basically had 0 libido and erectile dysfunction. It's more like I kept the sex in the relationship to zero, not her.

I've learned here to watch what she does, not what she says. So 3 days later (today), I invited her at my place with the pure intention to just fuck her shit out (literally). I made her suck me off for like half an hour and then fucked her in the ass. She was very into it unlike what she said previously.

I was thinking to call her out and tell her that I know what she said and ask her why she did or maybe even break up with her after I cum, but I didn't.

What would you do in my situation? I'm not really a man with big abundance right now. I'm young(17) and unexperienced and she is my first girlfriend, first kiss, first fuck ever. Should I tell her about it or just keep on fucking her and pretending I don't know that she was talking behind my back?

Yeah, I know I shouldn't be in a LTR at such a young age but I got into one before I found TRP. At first I didn't believe that you shouldn't be in a LTR but I've come to the realisation that it's the truth. Without much experience and abundance, LTRs can be very exausting and mentally draining, ESPECIALLY if it is your first experience with a woman.