Do I have to allow my mother-in-law to come on our family vacation?
Why? Is there a problem with her?
She's a jerk and always flirting around with other guys
Family vacations can be stressful, but it would be rude to not invite your mother in law. Try inviting her and politely letting her know how you feel.
I don't want her to come!
You'll be considered a jerk if you don't allow her to come, because your loved one will be expecting her to be there. Do you really want to make your entire family unhappy just to make you feel better?