It sounds like things are under control, which is a positive, anyway. And hey, at least she's giving you a cruise to somewhere you wanted to go in the first place! Could be worse!

My general advice to brides applies:

"Don't kill anyone's mother. You will want to either shoot your own, or his mother at some point in the process, maybe both, but a murder trial would wreak havoc on both the wedding plans, and then the honeymoon and life ever after - it's just not worth the risk!"