How to get rid of this shit

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Basically to make a long story short - my GF left me a few days ago out of the blue. At the same time my ex-GF decided to see me (we're going to meet in a few days).
This shouldn't be a big issue but I'm starting to get sick of feeling any sort of affection towards women. Not because "I HATE ALL WOMEN DUHH!" but it's just that every single relationship I'm trying to get up not only falls flat on it's face but it makes me generally more miserable. And also I think I just suck at making any meaningful relationship with somebody because I have nothing good to offer from myself.
So /adv/ - how does one get rid of a need to love somebody? How can I finally say that I'm done and carry on with my life semi-normally without this thing being on my back?
>also - 21, M, Europe (my English suck so bare with me), four relationships, 3 of the, ended with them cheating on me
>any additional questions you may have will be answered but that's quite obvious