I feel really good about blocking someone on Facebook.
Why did you feel the need to block them?
I don't have any feelings of guilt anymore.
Generally speaking, blocking someone on Facebook will hurt that person's feelings. You shouldn't intentionally do something that will make someone else feel bad.
I know but I don't like that person and I just want to get rid of him.
I think that you should try to talk to that person about the issues you have with them. I think that it is wrong to block them if you know that it is going to hurt their feelings.