Baby Congrat Message Should I Congrat Them? Now My Neighbour Has Their New Baby Born But The Father Wanted To Cheat On The Baby's

Should I congrat them? Now my neighbour has their new baby born but the father wanted to cheat on the baby's - baby congrat message

Me Mama before she is pregnant and she was rude and cold to me, but I respect their relationship and does not accept the invitation of the man. Well, I do not say congratulations? I must look bad if I just ignore this so-called "happiness" and not give you a card?