Guy's Behavior

He won't commit, but won't let me go either: am I in a toxic relationship?

I have been seeing this guy for 6 months now.
We dont live in the same cities so we see each others every 6 to 10 weeks.
He is 35 and I am 27
He has been talking to me every day for 6 months (he is always the one who calls and initiates conversations).
We came to a point where we started to express feelings a little bit ( he says he misses me frequently)
But we never talked about what we are or what are we becoming
We just used to ignore that as if it was a taboo
This situation is globally ok for me most of the time because I am afraid to get hurt I am in a phase in my life where I need to focus on my career
But I obviously have feelings for him now
And i started even feelin a little bit jealous from time to time...

The worst is I never seen any other guy since I knew him... so in 6 months despite the fact that we are not exclusive...
Lately I tried to see someone else to distract my mind from him and stop feeling jealous and needy but i could not. I mean i saw another guy who could interest me but I couldnt go further with him. The worst I even felt guilty about going out with this other guy...

Now lately I started to try to put some kind of distance between us (i answer after 10 hours, go out much and try not to talk to him, sometimes i don't event answer his calls) the problem is that he won't let me go each time and will multiply his efforts when I go through a phase like this. But will never ask me to be more than what we are... and I dont even know what we are.

Are there chances he could catch feelings for me too? That we have a proper exclusive relationship?
Maybe he doesn't care at all?
He won't commit, but won't let me go either: am I in a toxic relationship?
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