My sister got me to talk to one of her ex coworkers. (I'm 17, he's 18.) We were talking for months prior to meeting up in person. I've only had sex with one guy before, but he's had multiple partners. We ended up having sex (im not proud of it only because I never intended on doing it the first time we meet). Anyways, I met him up a second time. He told me how he sleeps with his friends sisters. He also keeps talking about his ex, which I get. It was his first love, but she treats him like complete shit. Me and him have had arguments about it, but I told him I support his decisions since it's clear he still loves her. I'm iust exhausted because I don't want to just be another girl to his checklist. I caught feelings for him, too. I need to learn to let go.