I'm a horrible person... I can't deal with commitment
Is there a reason you don't like to deal with commitment?
Not really it's just I fear my partners will leave me.
Commitment is a big decision and it is okay to fear what that decision might lead to.  If you didn't worry about commitment you might commit too soon to the wrong person.
Commitment is just so strong.
I understand why you feel that way, it's completely natural. What's important is that we don't allow the fear of commitment ruin our lives.