In short - re-write him completely. Preferably, removing the father issues. In a grown-up man who's been through hell and back (literally), it looks pathetic.
I don't agree with this at all. I think that Wyll, as currently written, is pretty well-adjusted concerning his father. Some people have actually complained that he shouldn't forgive his father (or, rather, say there's nothing to forgive), so clearly the writers can't please everyone.
