“Small spurts of jealousy” are rarely a small problem. Many of us on CAF are not young women with little experience in the real world, we’re a bit more like the commercial, “we know a thing or two because we’ve seen a thing or two.”
If you have these “small spurts of jealousy” just imagining certain aspects of marriage, just think how much bigger those spurts will be when they happen for real.
No one is telling you to not marry this man, he sounds like a great guy. I’ve told you do not marry him if you can’t overcome your issues about the situation for his sake.