I feel like “don’t try to get with your kid’s best friend’s mom” is also an option that should be on the table.

That said, don’t go the Facebook friend route. The intent is too ambiguous and doesn’t get you any closer to your goal. I’d favor either the direct approach (the classic, “would you like to go out for a drink sometime?”) or tie it to an activity you’d both be doing already anyway (“My son and I are going out for pizza after the t-ball game, would you and your son like to join us?” (I don’t know how old your kids are)).

I got called “Mr. Left Face” once.

I’m sure Melania Trump’s ghostwriter has strong opinions about abortion rights. Don’t give a shit what Melania’s are.