OK so me and my boyfriend have been dating for like 9 months and we had a really good relationship at first a lot of partying and stuff when he had his own place. Well he moved home and grew up really fast getting really responsible about school. I just turned 21 and have a lot of partying still left in my blood because that's just the way I am. I could settle down a lot but he's 2o years old and plays video games all of the time and he never used to be like this. We've gotten into arguments about this before but he just does it all the time. I don't know he never used to be like this at all and I don't understand somebody help!