I’m so fed up with guys flirting with me and then leaving me for another girls... what’s wrong with me or why are you guys such jerks?

I’m skinny, beautiful (I was told that), smart. I’m working in IB and I am fine being alone but whenever some guys show up in my life, they start all that talking, getting trust, sharing personal things and when I already think that this is it, I’m going to date him, I see through social media that he’s adding some new other girls... I mean why are you such jerks? Are you all the same?
I’m so fed up with guys flirting with me and then leaving me for another girls... what’s wrong with me or why are you guys such jerks?
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