I don't think you are too fussy Libby. If you don't fancy someone then you don't fancy them. Simples 
I'm always getting wrong off my friends for having too much of a 'type' (Elfin faced, fragile looking pretty boys-I know, shoot me!) But you can't help who you find attractive can you?
Hmmmm, I dunno about the kissing. If the physical attraction isn't there then I don't think all the smooth moves in the world will help. I can only use my Mr Open Relationship guy as an example. He's not the best kisser/shag that I've ever had, but I'm literally gasping for breath every-time he comes within 5 feet of me! EVERYTHING about him makes me want to jump his bones 
I think a lot of it is to do with chemicals and pheromones. I remember the first time he stood near me and all I could think was 'OMG, this man smells amazing, I'm going to pass out'. He doesn't even wear aftershave or cologne. It just that to my nose he smells utterly edible.
So erm, yeah, where was I? Yes, physical attraction. I don't think it can be forced. Eventually I am sure you will meet a man you are compatible with in that area. Hopefully he won't turn out to be a fuckwit like mine sadly is (fingers crossed for you)