Me and my boyfriend have been dating on and off for 3 and a half year. Well the problme is that some time I can't find anything to talk to him about after I ask him how he's day was and how was work. Most of the time we just sit there. I just don't know what to talk about. Some time I just want to get inside his head and see what he is thinking about when we can't find any thing to talk about. So what should I talk about?