DEAR ABBY Sister-in-law weighs exposing cheater

Dear Abby: My husband works out of town with his brother, who is married. While I’m not close to my sister-in-law, I like her just fine.

My problem is, my husband keeps sharing with me that his brother is unfaithful while he travels, and I have actually overheard him on a call with my husband trying to show my husband nude pictures of other women. I cannot express how much this boils my blood. I feel stuck with deciding whether I should share this information with my sister-in-law, or if it would be overstepping some kind of boundary where it’s not my business. Because I don’t talk with her often, I’m afraid I would just cause drama where I shouldn’t have put my nose. But I believe she’s a good wife and mother, and I feel awful and burdened by the knowledge that her husband isn’t faithful to her.

Should I keep this to myself and rely on “karma” to one day reveal his transgressions, or should I give her the information I have? My husband says he would be uncomfortable being put in a position to “out” his brother.

Dear Tempted: “Karma” won’t protect your sister-inlaw from syphilis, chlamydia, gonorrhea, herpes and HIV, to name only a few of the

STDs her husband has been exposing her to. Tell her it’s important she schedule an appointment with her doctor to be tested for all of them.

Dear Abby: I have two adult daughters. One of them is self-centered and refuses to give any gifts for my birthday or for Christmas, even though she very much likes receiving them. I feel like I’m being taken advantage of.

This is exacerbated by the fact that, in the past, I have bailed her out of some sticky situations.

I know that’s a different issue — and I have set boundaries for that — but this gift thing has frustrated me twice a year for the past 10 years, and it’s time for a better plan. Help, please.

Dear Dad: Have a long-overdue talk with your daughter. Showing thoughtfulness isn’t supposed to be a one-way street, which is what your daughter has made it. More important than a tangible item is the thought behind it. From where I sit, if she doesn’t bother to call or text you on these special occasions, I think your generosity has been taken advantage of.