Love Advice Please

Hi, I can’t believe I am actually posting this since I’m usually the one giving the advice but it seems I can’t find the proper advice for myself.

So, here it is.

I’ve been on a relationship with a guy for nine months now.
The beginning of the relationship was awesome as hell but even in the first weeks/months I could see what would go wrong later.
My boyfriend is very self-confident; he considers himself highly intelligent – which is actually true BUT the real intelligence is to question yourself right? He is modest in his words whenever we talk about this topic but his behaviour shows he finds himself superior.
He is also quite impatient and so gets angry easily.
This, doesn’t suit me at all.

A couple of months ago I figured I would get the fun, the experience and the knowledge out of this relationship, and I would eventually end it when I decided I couldn’t bear his negative sides.

I think the time has come but
1) of course now I feel extremely sad whenever I think of ending it which makes it difficult
2) he’s going through a horrible horrible period therefore I don’t feel like letting him down
…

The last time I saw him he spoke to me like I was the shittiest shit on earth and I stormed out of his apartment.
Yesterday he sent me texts which I didn’t answer but after a while I did, I was just really cold.
And now he’s coming at my place for practical reasons.

My next moves are : not being cold but being myself; only not too in love because I think love actions might lead the other one into disagreeable ones (amazing how people and nature aren’t logical) – which was the case last time I saw him. I actually think I am going to behave as a friend and not as a lover/girlfriend in order to get used to the idea of quitting him and see how it goes (because I also explained to him everything that was going wrong and now I’m waiting to see if there will be any changes). This way I can also be there for his difficult moments. But I think that if it goes wrong again I will tell him I am ending our love relationship because he doesn’t correspond to what I want in a man. Or, if I’m going to be precise, that he has 5% of unbearable demeanor which make me feel particularly not at ease and that I don’t want to tolerate them. Because that’s how I see the relationships I’m in : you’re not here to tolerate, you’re here to share, have fun and grow up.

There, if anyone is up to reading all this and tell me what they think of the whole situation.
You also have to know that in the first hours I saw him I told him that if wasn’t my soul mate he was extremely close to it. We laugh all the time, have a high complicity in our couple and we’re very much alike except for the two main weaknesses he has.

Thanks anyway for this amazing website, just writing all of this makes me feel better.