Sorry to hear this..major red flags with this guy for sure. I'd say he has a classic case of "control freak" going on not to mention some serious double standards. This is a situation that your husband's girlfriend is going to have to take on. If she can't work through this with her boyfriend now, the chances of her being healthy and enjoying her relationships presently and in the future seems pretty slim.
No one likes to be told what to do, but I think it is time to sit down with her and point out the negatives in the relationship she has with her boyfriend. If she can't figure things out than maybe it's time to give her some space for your husband's own health?
Sorry to hear this
Peace and Love
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Monogamy might just be in my genes
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