I'd say if he's that jealous of an animal theres a few issues HE needs to deal with before you even need to think of letting anyone go. Personally, I've always said if I enjoy it and I can take care of everyone to the best my ability then I dont care how many I have. It's a great hobby to have! I love it. Breeding and keeping a large amount of animals is a huge responsibility as I'm sure you know. It creates a ton of tension when things don't go as planned or someone gets sick or even breeding season alone it's crazy. My boyfriend refers to me as the dragon lady during this time. Lol no seriously he does. It's def not an emotionally easy process. You shouldn't have to give up something you love based on jealousy though. That's kinda crappy. It's alot of work to even breed and keep just a few. Much less many. For me though it's worth it. I love it, and if he gets jealous at the fact that you have a passion and love for something other than him, I suggest he get a hobby as well.