I think what Tish says is bang on. A lot depends on how genuinely contrite the other person is. It depends on their motivation in the first place too, did they intend to hurt you or was it accidentally.

I don't think anyone should ever feel guilted into forgiveness though. It is entirely an individual thing dependent on many variables. It is not sensible to compare or issue blanket statements.

One thing I would like to add is that just because we don't feel forgiveness now doesn't mean we never will. Feelings can change.