We've been dating for 6 months. Now the euphoria of the first months has passed and several things in our relationship have begun to seem strange to me.

He doesn't like to plan anything, he likes to make dates spontaneously on the same day. We always see each other once a week or 2 weeks, unless I am someone who initiates, although he is currently doesn't have a job so he has a lot of free time. And he always says that he spends time every day not at home, but with friends and family. Therefore, the next thing that seems strange to me is that he meets very often with his brothers and family, but never introduces me to them. We don't have any mutual friends or acquaintances. When I ask him about past relationships or his friends, he is very secretive and doesn't say anything. Therefore, I began to have suspicions that maybe he doesn't take me seriously, although we go on dates and spend quality time but not so often and he was the first to offer to become his girlfriend after the 2nd date.

The problem is, if I start talking to him about it, I'm afraid he might not tell me the whole truth about how he sees our relationship in order not to lose me