Will I be alone next time?

I do feel like sometimes is my fault that I feel like slapping someone. Or more like just me being annoyed by every human I interact with.

I'm thinking that one day will I be alone when I grow up?

Am I just being hot-tempered? Or is it just I have a bad attitude to people? Is the problem on me or on other people? Me being nice to people is it really from my heart or am I just being fake?