If he seriously won't talk about it, then there's no real way to resolve the issue. I'd say, keep trying at communication. If it doesn't work, something's got to give. Either you need to just "ignore" his jealousy and just get on with your sex life (with toys), or he needs to get over his jealousy. I mean, just because he has issues doesn't mean you need to suffer for it, right? Just keep at him! Without communication, though, nothing is going to get worked out.

If he made an actual, verbal comparison, that is totally crappy.

One thought here: Is he really into porn? My dh and I have a fairly major difference in sex drive--mine being stronger--and we find ways to compromise. I'm the initiator much more often than I'd prefer to be, but he's OK with it and so I do it! My dh had an issue with porn causing him to lose interest in the real thing. We do NOT masturbate without the other one there, even if one of us is too tired to participate. I think it's a huge turn on and he's been won over to my way of thinking. hehe Taking showers/baths together "just because", without any expectation of sex afterwards, can often lead to it and that can be a non-threatening way to get things started. Just be creative, as I'm sure you are being, and see if you can baby step your way to introducing a non-realistic toy--suggesting that HE use it on you or buy a vibrating cock ring that is for both of you to start.

Maybe try counseling for the both of you.

Have you tried introducing the toys while you're together? My husband and I use my toys together...he LOVES to watch me using a toy on myself. I think a lot of guys would have a problem if they thought the toy was replacing them, that's why we do it together. It helps to spice things up and I'm guaranteed an orgasm...it's a win/win for both of us.