Hi Crys,

I second everything Will said.

If he dumps you over this, guess what? Fine!
If he gives you the pouty silent treatment, guess what? Fine!
If he gets jealous, guess what? Fine!

Make is simple.

Say, “Honey, I know you get jealous, but that’s on you, not me. I have a level of Integrity, and I would hope after all these years that you would know that too. I will promise you this: I will never hang around another man alone, I would always be in a group with other girls. You are always invited to come along with me on all my outings and adventures. And at all times I would act appropriately as if you were there with me.”

The next time he gets all jealous, whatever you do, don’t feed it! If you ignore it, it might get worse temporarily, but then when he sees he’s not being “fed”, the behavior will go away.