advice needed please!!!

Lol, I've never done this before but I'm gonna give it a go because I really need advice. So I've been Dating this guy for a month now and we were off to a good start. We went on dates we hung out and we were so very happy. But this last week hasn't been so great. My boyfriend had to go to his moms for Christmas and after that our relationship has gone so hill. First of all two days before he left for his moms he told me that the last time he went there two girls were twerking on him at some party and that kinda worried me because a. This would be are longest time apart and b. I have very bad trust issues so that sucked so when he got home I went over and we had an okay time but he's just not himself whatsoever. He's to lazy to type out good morning to me and I never ever get goodnight text anymore tonight on FaceTime he was acting so weird and hurt shady he's really been treating my like crap and my friends say I should drop him and I feel as though I should but part of me just can't let go what should I do please leave some advice.❤