My sons dad hasn't really been around for the last few years. Well 4 to be exact. He has in that time had another 2 kids from 2 other failed relationships and doesn't see those kids either. Almost 2 years ago (shortly after his 3rd child was born), he left the country to go travelling and hasn't stayed in contact with my son at all. No phone calls, no birthday cards, no nothing. Well now he's back in the UK and I think he wants to try and start contact with my son again. There was a few emails to me a few months ago about seeing my son when he came back but he was shady about if or when he was actually coming back. My question is, should I give him a chance to get to know our son again or tell him to do one? I kind of feel like he lost his right to be a parent when he swanned off to go travelling without even telling any of his kids. I had to find out from his mum who even he didn't tell until a week after he left! My son is...indifferent towards him.