Kazza Sorry if you feel some responses are harsh, but we were just trying to be honest, which I think has helped you, because you have made a turnaround from your original post.
I think you’ve re thought your wording, which means you can see what people are saying, or you made a mistake saying them.
1. You talk about the girlfriend’ snubbing’ you all. Just using that word, makes you sound hostile and expectant. If I was her, that alone would put me off. Far better to say something like ‘ she doesn’t seem to want to join our family celebrations, but could just be shy’
2.’ It’s a fight to get him to attend any family celebration’ This suggests pressure...so nagging would fit the Bill, even though you didn’t mention that actual word.
3. ‘ we are not even allowed to be at the birth’. Only says one thing. Been discussed.
You said ‘ any advice would be appreciated’. Some of it was hard to hear I’m sure, but your subsequent posts seem to suggest you have understood, and are now tying to backtrack.
I can only say, please just back off and enjoy what you have. It’s not too late, and some time in the future, things will hopefully be very different.