"It's complicated..."

So there's this guy I've none for almost a year now. When I first met him we started having sex and when I told him I liked him he blew me off and pushed me away, told me he didn't want anything to do with me.

I still saw him at work and we used to exchange them here and there.

I spent a lot of time behind him but he always said he didn't wanted me.

So couple weeks ago or so, he called me and we went out, he stays at my apartment and it's like we're. The other day he asked to get out of the car at his house, we sat at outside but it was still weird that he asked considering how bad he treated me before.

I met some of his family and then we went to my apartment.

He stays all day with me and it's like we're a couple, he opens up to me and ask me questions, he gets jealous and territorial but he always says he just wants to be friends.

Idk what to think.

All I think he's maybe using me because he knows I care.

Or that he's having an existential crisis and I'm one of the symptoms.

What do you think.

He's 23, I'm 18. If that matters...