<human>: Summarize the given text in a few sentences.

So here's the scoop, we met at college but are both from a different area. Our families happen to be about 30 minutes apart. It's been about a week since we last went our separate ways for the holidays, and we went from hanging out/chatting every day, to suddenly, I have no idea what's going on with him or his life. He hasn't called or skyped, though I did get a "Merry Christmas" text. When I told him my parents would really like to see him, he just said "we'll see" and hasn't made any indication he wants to see them (or me!) Almost every text I send him is met without response.

I understand that he has a lot of high school friends, and lately they're into some hardcore partying. It worries me that he hasn't told me who he's been hanging out with or what he's been doing, but at the same time, I am afraid to be overbearing. It's a vacation, and I want him to have a good time. 

Am I allowed to feel what I am feeling, or does this sound like some crazy possessive behavior? Part of me wants to call him out and ask him why he's treating me "outta sight, outta mind", but I also don't want to stress him out. Is it too much to want him to see my family, even though we see each other a lot during the school year?
<bot>: Boyfriend of 1.5 years suddenly stops communicating over holiday break, making no effort to see my family even though I know they get along well and we are only 30 minutes away.