Bad Judgement ?

I think that I might have regretted some choices I have made back in the past.
I don't know if I want to fix this. I don't like playing with other people's feelings. They don't deserve it. HE doesn't deserve it.

So can give me the exact meaning of "love"? or of " falling in love" ? 'Cause I can't seem to understand any of it. Am I not welcoming love in my life? WHAT'S WRONG WITH ME?

Everything seems to have a manual; machines, services. Why not love too? I think it would give a clue to the naive and a certainty to the hard-working brave ones.