I know how you feel, not only my partner, but my friends are like that. It's hard, especially when you're excited about something you purchased, something you've learned, etc. It's like you have no one to talk to.
I got lucky though, my partner didn't actually dislike reptiles, he was deathly afraid of them. So I slowly moved him away from that fear. First I made him hold my Spotted Python's tail, then so on and so on, and eventually he came to at least tolerate them.
He's even thinking of purchasing a Male Fat Tail gecko to mate with the females I'll be getting.
Sometimes it just takes patience. But other times, people are just plain pig headed (aka hanging up)