Search Results: why does he ignore me baby

If you need a back story I spent this previous summer with my boyfriend in his home state. His then 15 year old sister treated me like shit and no one knew why. While we were there a few incidents occurred that made me question how she felt towards her brother but out of respect I never said anything. We have been back at college for a few months now and the questionable acts have continued. She has posted several MCM and even MCE of her brother where he shirtless and even some of just his abs. Then in the caption she put things like "I'm lucky i found him" "We have a ride or die relationship" and other things I would never say about my brother. Also in these captions of the posts she never once says "this is my bro or my great big brother I look up to" Even though these posts were very suspicious me and my boyfriend talked about it he agreed but said how does he approach his mom or sister with something like that. I was clueless. So we just stayed quiet and the posts continued. Then comments started coming people would comment on the posts asking "Oh you go with him" "your man is fine AF" and also " I see who the real bae is" never once did she correct them. Then we clicked on one of the profiles that had commented and their page wasn't on private. We looked at the pics and on one of them his sister was having a convo with this girl and the girl said "your pics are dope especially the ones of your man" his sister responded by saying " lol yea thats my baby he erky and crazy but we been rocking it for 3 years now" I couldn't believe my eyes. My boyfriend checked and he was the only guy she had on her ig. At this point he knew he had to tell his mom. My sister also follows his sister and saw the comments and wrote on the pic and said " you shouldn't be telling people your brother is your boyfriend you're welcome" His mom completely ignores everything the daughter did and said and only had a problem with my sister saying something to her daughter.