You have nothing to regret. Trying harder? You already tried too hard. Honestly asking a man to do things around the house while not being into him isn't "hanging out" is using the person to ones advantage. Sure maybe she has nice parents but that's not a good enough reason.

By the way I am friends with my ex's adult kids. They asked and I agreed. And I was the one who left their dad and they still wanted to be friends. There is no law against being friends with family of your exes. You can do it just fine

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