Sorry this will be long to avoid drip feeding!
My 'D'F left my DM when I was 4. He instantly shacked up with someone else (his secretary, although he claims there was no overlap, I have seen it cited in the divorce papers he signed) and they had two children, my (half) brothers who I have a great relationship with. He then left the OW for someone else, they married and by the time I was 15 had moved 200 miles away. The relationship began to break down from there. My stepmother made it abundantly clear from her behaviour that she would rather we were not in her home, arranged visits dwindled and she would regularly make other plans on weekends that we visited.
I moved considerably closer to them (an hours drive) when I was 22, but rarely saw him. When I had DC's, he would visit occasionally but as I don't drive and public transport from my home to his took over 3 hours returning the trips was difficult, plus their home is not child friendly in the slightest. There have been other incidents where we arranged for him to visit, I waited all day with then 3yo DS1 and newborn DS2 all day, but he never turned up, and because he has no mobile phone (or email, FB or internet for that matter) I couldn't contact him. We then moved closer to my DM & DSF (both of whom are wonderful & very supportive) as DH was offered a better job. This meant by the time DS2 was 10 months old he had seen DF three times in his life.
In the 2.5 years since we moved the relationship has deteriorated further, we have see him once in that time and only because we visited him. He claims his business (running a bed & breakfast) prevents him from visiting, but still manages 2 one week holidays in other areas of the country. We speak on the phone probably once every 6-8 weeks. During our last conversation he asked me about the DC's birthdays. They are his only grandchildren and he couldn't remember what dates their birthdays were. DS1's birthday was last week and he has received nothing, not even a phone call. I haven't chased DF on it, partly as I was expecting it, he has forgotten all of his own children's birthdays prior to now and partly because I know he'll give me a big elaborate excuse, apologise profusely and I will tell him it's fine and not to worry about it.
But it doesn't feel fine. It's yet another let down. I've not mentioned it to my DS1 as I want to protect them from it, I don't want them to feel like I have done. I'm hopeless with confrontation, and a complete soft touch. I want to hate him, I want to tell him to fuck off and to never give him another thought but I can't. I thought that made me the bigger person but I think it might just make me a doormat.
These are all normal valid feelings aren't they? My DH gets very protective of me and our DC's when it comes to this and finds it very difficult to discuss it with me without getting angry on my behalf, hence this post. My siblings have pretty much removed him from their lives, but none of them have children & part of me feels like I shouldn't prevent my children having a relationship with their grandfather.
Thanks, if you got this far.