This sounds really painful but if this is the kind of guy he is, then perhaps it's a blessing in disguise you broke up before investing too much into the relationship.

My latest relationship was long-distance and he definitely chased me from the start. Maybe I was too aloof and didn't return him enough attention, but he gradually stopped texting and FaceTiming and one day his social media started filling up with this new chick (and captioned with the things he used to tell me). I guess I was just another of the list of girls and he gave up because the distance made it hard for anything physical to happen.

I'm really done with guys who are in it for sex. I respect you for not giving in earlier because these guys just aren't worth it. Hope you find someone who can cherish you and your values soon.