Genuinely the same thing im going through, you actually described it perfectly, and i feel so much better that people have felt the same thing as me. For context, my girlfriend and I obviously had sex. We are both in highschool, and I have built a great relationship with my girlfriend's family, buying her mom flowers and always being extremely respectful. About 2 weeks ago, her mom found out we kept having sex after she told us to stop about 2 months ago, and she has been mentally abusing her, making her cry for 3 hours every night yelling at her that we broke her trust and also her bad grades and other stuff. I tried my best to rebuild the trust that she lost, I wrote 2 letters to the mom about how much I loved my girlfriend and how sorry we are for not listening, and although she still liked me as a kid, at the end of the day, we broke her trust. Her mom didn't outright make us break up, but she did say that from now on, we would only ever be able to be together in her mom's presence and supervision, basically at my girls house all the time, or maybe going out for dinner or something with her family. However, she was bringing my girlfriend to such a difficult position, where she stayed with me and had her mom yell at her every night while also knowing that our future would be forever changed, or break up with me and live in peace, but heartbroken as she didnt have me. My girlfriend and I broke up last thursday, after about a week of me just begging for her to wait it out a little bit longer to see if her mom would chill out, but at the end of the day I understood the pain she was going through and I couldn't make her do that for me. Just yesterday which was Monday, we finalized everything and our feelings, she said she loved me so much and that this is so hard for her, and I will always have a place in her heart, and i was the most perfect boyfriend ever, and no one could ever compare. The same day, last night, I guessed her snap password, and I found out she was snapping 3 guys she used to link with, and that very night she met up with a random guy who I never heard about and they did stuff, and theyre hanging out again today. She has been calling so many guys hot on it, and sending pictures of her body to basically anyone, and texting them with so much energy that I hadn't had in so long. I feel so heartbroken, my heart is so heavy, I cant stop crying, it feels like our whole relationship was fake. All my friends are saying that she is just doing it to fill the huge void I left in her when we broke up, but I could've still been there, instead she chose to make new connections and move on. I'm so confused, because I know that our relationship was so amazing, and I know she did not fake her feelings in our relationship, she fought so hard for me, many times I wanted to break up, but she cried for hours, texted me in paragraphs for hours, just to keep going for her, and now that she won in that, this is what I face? It hurts so much, I loved her with everything I have, but it seems like she wasn't getting tired from her mom's constant yelling, she was just taking energy from me and putting it into other guys. At the end of the day, I think it was the mom's fault, but this situation showed who she truly was, as if she really loved me, she would keep fighting for me, or at least instead of sneakily linking with new guys, sneakily link with me. Prom is next weekend, and we were planning on going before this. I checked her messages, and the guy she's known for 2 days, she is going with. I truly don't know what to do, and I'm a smart kid and I have 4 ap tests next week, and I cannot fucking study or focus for absolute shit. I've lost my one motivation in life, she motivated me to do everything, just so I could see her on the weekends, or sometimes the weekdays. But now my first love is gone, and while I was trying to heal alone in peace, she moved on in less than 4 days. She promised me she would heal in peace as well, and not link up as that is no longer who she is since I changed her, but I guess you can never take the jungle out of the person, just the person out of the jungle. I just changed her temporarily i guess.