I apologise for the lengthy post - it does have a point to it!
I've always had a rocky relationship with DF. He cheated on my mum and left us when I was 5, was in a new relationship & had another child with his new girlfriend. We still got on well until I was about 16 when he called me fat/ugly (I was a size 10-12) and said I'd never amount to anything like my older brother has. We didn't speak for 2 years and later he apologised and we started seeing each other again.
We didn't see a huge amount of each other and when I got my driving licence he always wanted me to go to him & I did - every weekend and if I didn't on the odd occasion I'd get numerous calls & voicemails telling me I used him and I wasn't bothered about seeing him.
By the time I turned 23 I was seeing him about once every 2-3 weeks & I moved into my new flat with my friend about a 20 minute drive (rather than 5) just off the motorway in town. We were in there for a year and he NEVER once visited. Still expected me to go to him every time.
During this time, I graduated from university ON my birthday. He didn't attend even though I asked him to come. This was in the same town as I lived in so not far at all. (Was also his day off from work)
Last year, I found out I was pregnant with DS. He had a go at me (unexpected pregnancy, in shock) but then didn't speak to me for months. Until the end of my pregnancy when he wanted to make amends and fix our rocky relationship.
I advised him I felt like our relationship was never going to be the same but I was not going to deny him the relationship with his grandson as long as he put in the effort to see him and just love him.
He is now 4 months. He came 2 times in the first week he was born & I'm now living 5 mins away from him again. Since then, I've been to see him at least every week up until last month. This has cause my dad to go to my brother and accuse me of not making the effort to go to see him (I currently don't have a car either) and even said that every time he asks to come round I always say no because I'm busy. I told him he's welcome to come round anytime after work/ at weekends to visit! He asked me once and this was on the same day he complained about me & I was out with DP and DS.
Then about 2 weeks ago he said he was going to come over and didn't.
I haven't attempted to contact him since.
AIBU to just stop making the effort and leave him to it? I don't want DS to have a part time relationship with his grandad but he clearly doesn't care enough either to make the effort to see him!