If your sister has shouldered the responsibility of caring for your dying father by herself, thinking you are too busy working to help, then she would have every reason to be very angry. All you need to do is say no to her invitation if the activity isn’t your cup of tea. [...] surely, you can find a tactful way to ask any drop-in visitor to make plans with you ahead of time instead of dropping in. It may be the attitude you’re projecting that’s keeping you from meeting men on those dating sites. Everyone I have talked to has told me to pick the style and color dress I prefer. If I show up in a dress that isn’t green, I’m pretty sure it will create a scene and I’ll be asked to leave. Do I cave and wear what she asked of me, or wear what I want and face the wrath of Bridezilla? Tell her that while you have no objection to wearing something green, you do not intend to wear anything strapless — and if she really means that if you don’t comply, you won’t be welcome at the wedding, you will not be there. Let’s hope it brings her to her senses because if it doesn’t, I doubt you’ll be seeing much of her and your son anyway.