I haven't read all the posts (sorry) but I am in a similar situation. My bf isn't very fond of my reptilian pets, especially my 14 foot long burmese python, but he accepts them and me.
He won't offer to help, and always critcizes me for the money and time spent on my 'babies', and he thinks that my pets are just in our lives to annoy him.
He has occassionally shared the interest with me. He once bought a golden gecko and named it Midus (sorry bout the spelling). One birthday he gave me two sweet little anoles. He 'gets' that they are important to me. He just doesn't really see what the big deal is about pets you can't walk, can train and can't really do much with.
Hubby can be pissed; mine knows where the door is =D