You're going to hate this advice... But have you read any books on dating? "Why Men Love Bitches" is a sassy, feisty, funny wake-up call of a book about relationships. or then there is the seminal "The Rules"...
I know, I know! But it was only by reading The Rules that I realised:
a) I was giving far too much in relationships. I was giving first, before the man did, thinking that my generosity would kick-start his. Uh-oh.
b) That I was indulging in "fantasy relationships". I have an ex who I secretly consider to be my soul-mate and perfect mate. I waited years for him, then read TR and realised that, as he wasn't actually asking me out on proper dates (with advance notice), buying me presents, helping me with stuff, getting jealous of other men who liked me, etc, etc, it was all bollocks. He didn't really want to pursue a real relationship with me at all. When I gave up on him, I met DH.
c) That I was trying to impress men with my intelligence. Not to say that I became a bimbo, but I stopped competing with men and thinking that if I indulged in lengthy "heated debates" with them about topics, they'd respect and like me more. I realised I didn't want to be respected (like a colleague), I wanted to be adored and found charming.
d) That you don't have to do anything to find Mr Right except go out, look nice, make your own life fabulous and have lots of interests.
e) That the right man for me would do all the chasing. That he'd remember my birthday, not run a mile on Valentine's Day, do what he said he was going to do, and never give me a minute's doubt. And that men who weren't like this were not projects for me to fix, but Just Not That Into Me and therefore not worth wasting time on.
Sounfds all v trite, doesn't it?! But it was a revelation. My Dad was unavailable when I was growing up, like yours, and it definitely drew me towards elusive males. But I broke the pattern and learned to be a lot sassier and put myself first. I'm by NO means perfect and my marriage has had a good few ups and downs, but it's stopped me being needy. I was very needy before, even when I thought I was being "strong".
I'm forever hanging round these threads lecturing, so I don't want to do that here! I'm not trying to push the book on you, it's just what helped me.