We got back together but he has been a bit weird? Or maybe I’m overthinking it?

We broke up over a month ago (after 4months of dating) because he was concerned about me having guy friends or going to parties without which I did not understand the importance at that time but after talking 10 days ago I realized that he wanted a really serious relationship so I assured him that I too wanted the same thing now I will do my best to gain back his trust. Meanwhile I found out that his friends are way too involved in our relationship meaning that when we were on a break they were telling him to not trust me and block me from everywhere. Despite all these he came by my house to talk and get back together but he doesn’t want his friends to find out about it. When I told him why he said because I don’t want them to talk about this, it’s my life and it’s none of their business. I’m not convinced though! Also our sex life has been strange, he likes to talk about sex all the time and he has talked about his sexual fantasies and the other day while we were having sex he named 2 of his female friends and said they are nothing compared to you and they have no right to talk about you, you’re the most powerful woman and they are your slaves :/ I’m not gonna lie that has made me quite uncomfortable because I don’t understand why he would say this. Also I was concerned about us talking about sex all the time so I asked him am I your girlfriend or a sex partner? He said you know I’m not into having sex partners and I love you and you are my girlfriend. I don’t know why the fact that we do not go out with his friends anymore or we barely meet outside has got me worried. Should I be worried?
We got back together but he has been a bit weird? Or maybe I’m overthinking it?
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