Ok, start again 
Bit of a dilemma that I need opinions on...
For the purpose of this, I'll say S dad name is 'John'. So as I've mentioned on here before, he hasn't seen S now since she was 6 weeks old and last was in touch with me by a text apologising for everything back in January. There has been nothing since, not even on her birthday. This really upset/angered me and a month ago after a few to many drinks I text him asking why everything happened the way it did and it was obvious me and S ment absolutely nothing. Woke up the next morning deeply regretting it and hoped he wouldn't reply but also a little part of me hoped that it would prompt something. Anyway, it never so I just put it out of my mind.
Last week, his sister text me (no idea how she got my number) saying that her mum and dad (s grandparents) were wondering when I might think about letting them meet her. They have had no contact with me at all during pregnancy/1st year, apart from a message via John when I was a week before due date asking if there was anything they could buy for S. I politely said thanks, but everything was sorted. I haven't met them before, even when I was in relationship with John as he doesn't get on with them (ie sees once a year at a push etc). His sister fb me when S was born saying congratulations etc and couldn't wait to meet her. I said thank you, but never made plans as I felt it would be very awkward as John had made it clear to me he didn't want to see them so I'd be going myself with S.
So anyways, his sister was saying how they wanted to meet her and how S was 'obviously a 'surname' as she had all their family facial features'
. I replied saying we were both good but I am sorry, I have no intentions of seeing them esp since her own father hasn't in a year now. No reply from her.
So then this morning, John texts saying he apologises (didn't say sorry) for everything that has happened over the past year, there isn't a day goes by where he doesn't think of S bullshit and he knows he has a lot to do to make it up to me, but he hopes I will text him back so we can talk..
As you can imagine my face was
when I woke up to this. I've just message him back saying that I can't even think about him right now as I'm totally disgusted and as far as I'm aware, he doesn't deserve to know her. So far, no reply as yet.
So I need opinions on what you lovely ladies think. Words can't describe the hate I have for him for just abandoning his daughter like he did, but at the end of the day, he is still her father. He isn't on her birth certificate so I know 'legally' he can't just start throwing around demands.
I'm so confused as to what to think/say