my daughter's father disappeared when she was a few weeks old. We weren't married, but were talking about it, had been together a couple of years beforehand, he'd come to family events, holidays etc., and he'd been pretty much living with me, but when I was pregnant his behaviour had become more and more erratic, abusive and once aggressive. I then found out during the pregnancy that he had a wife and kids elsewhere (he'd told me he was divorced and as he was at mine most nights, 6/7, I genuinely had no idea that he was leading a double life)
well to cut a long story short (daughter is now 18) he disappeared for a few years then had this occasional contact with our daughter. I wanted her to know her father, but in retrospect perhaps this wasn't a wise move for me as I had this very negative presence in the background of my life.
I have really struggled coming to terms with the deception and lies, it was devastating. I've suffered from depression and self esteem issues which have coloured me, constantly since.
over the last 5 years since my daughter grew old enough to question and challenge his behaviour, he has disappeared again. for a while i kept calling/messaging (mainly because he owes me a lot of money, to be honest) but never responds , to me or his daughter. From the sound of his ringtone i think he may have gone abroad.
Above all it is the lack of a normal relationship, or at least a normal ending to the relationship, that has hurt me, the sense of everything having been false and everything I knew was lies.
I would love to know how you get over this kind of betrayal to be honest but I've yet found a way despite it being over 15 years :(