[KSUViolet06]

I think you're being unreasonably jealous and insecure.

I'd seriously postpone getting married to work on the trust issue, because the engagement/wedding is not going to magically change that.

Things won't change once you guys move/he graduates/whatever and he stops hanging with her. You'll just have the same jealously over a different woman (i.e. someone in his office at work). He'll get sick of you acting jealous and arguing with you all the time, and you'll be divorced before you know it.

I think the part about not wanting him walking her to her car at night is particularly ridiculous. I personally would be mad at my significant other for NOT walking a female guest to her car. Come on.

If you can't trust him to have a platonic relationship with a woman, you don't need to get married, unless you expect him to NEVER have any female acquaintances.