Ask Mish: Is it wrong to date two sisters and their mother?

These people took the old "when you marry someone, you marry their family, too" a little too literally. I didn't care that he got married anymore, but it did hurt when he showed up dating a 1-year-old and pregnant wife since I can't have children, and he had said he didn't want them when we were together. Later that night at the reception, I got really drunk and ended up talking to my ex's dad.

Things escalated.

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We slept together, and I, being an a-hole who hadn't quite recovered from what his son did to me, continued to have a public relationship sisters his dad for six months. She would call in the middle of the night asking him to come to fix her car and all sorts of weird shit. I became suspicious, but he denied, denied, denied. Years later, after our daughter was born, I found out "two" was cheating with her.

I have no idea how long it had been going on. Now they have their own kid together, and his family has welcomed her back. I find it truly so gross and bizarre. We hid it from his family, knowing how they would think it was weird. We ended up eloping, and Guy B has yet to know. Multimedia, Inc.