The only way obsessive jealousy is an AS thing is the fact that it's probably tied to extreme insecurity. A lifetime as a freak tends to leave one insecure.
His behavior is wrong. I understand it, maybe, but that doesn't make it right.
You are living in an untenable situation with a very high risk of becoming abusive.
He either gets help, or you get the hell out of there. Sooner, not later.
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"