Guy's Behavior

Guys, how can I be his peace?

This guy I've been talking to is going through some things mentally and I'm trying to be there for him. He pushes me away intentionally and it drives me nuts because I know he doesn't mean any of it. I want to be supportive for him and help him figure things out but the problem is I don't know what truly bothers him. He even told me he can't explain it because he doesn't know himself. He wants to be happy in a relationship but it's like he's emotionally damaged since his ex-wife and it seems like he is stuck in this miserable place.

He knows I'm there for him and that I've fallen for him. He questioned why one time. He said "I don't get what you see in me. Like why do you like me so much?" If only he could see himself through my eyes. He's all I've ever wanted and seeing him so down tears me apart.

Anyways, other than just telling him I'm there for him, what else can I do? I want him to be happy in general, even if it's not with me.
Guys, how can I be his peace?
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