So the woman my dad is currently dating is somebody who he dated before my mother--and while they were married. This weekend, my dear tactless grandmother asked me how I felt about that! I didn't think my mom would get upset about it, I thought she'd think it was funny that my grandmother is so rude sometimes.

She got really upset. So upset that hours later when I called her about something else she brought it up again. She said something like, "I've had to tell you things about your dad that you shouldn't have to know." And I was trying to make her feel better, and said that I was too little to understand it at the time but my dad wasn't exactly discreet with one of his girlfriends. So I've known for a long time that my dad wasn't a good person, and I'm okay with it and she shouldn't be upset for me.

My mom hung up crying. I feel like an asshole.