How crazy am I being?!

So me and my boyfriend go to different boarding schools- his is mixed mine is all girls. We only see eachother every 6 weeks or so, so I miss him a lot. We've been together a year and a half and our relationship is great. Last night he went to a girls boarding house and watched tv there for over 2 hours. There were guys there too and other couples. For some reason it really got to me and I felt really angry even though he asked me if he could go and I knew he wouldn't do anything with any girl. Then tonight our friend (who is a girl) and he's not that close to her, called him for over two hours. Apparently they had a really nice conversation too. This made me angry because I can't remember the last time we had a nice 2 hour conversation 😔 am I being really crazy? Or should I be slightly mad?