Why am I like this?

I don’t know why, but I am so insecure and I get so jealous when girls are around my man period. He’s my territory, and I don’t want another female near him. Like I’m very protective over what’s mine. He sometimes likes that side of me. But we have so much wrong in our relationship, that i don’t know what to do. He doesn’t like going to church, he smokes, and he has some other big issues. Well every time I look at his phone, he always got something new. It’s never any numbers that he is talking to. But multiple scams be messaging and calling him nonstop. Does this mean he signs up fo stuff? He always trying to hide something, but I have a lot of ways to check it, without him knowing. But I want to help him,. But he doesn’t let me. He is very private. Especially since my darn period came, we don’t do nothing. This is just great!