Name changed as sensitive issue.
Just a query about what you feel is appropriate contact between mums and dads of school-age kids. As a bit of a backstory: I've been a single dad for a couple of years. Kids mum left me after she started hanging round with another dad whilst the kids played in the park after school. They began an emotional affair which developed into a full-blown affair. When it came to light we divorced.
Fast forward to today. Since divorce I've shifted work hours so I can do pick-ups on my days. Kids are still going to play in the park after school, so I'm now socialising with mums of their friends there myself. One in particular, I find I'm spending a lot of time talking to - to the extent we're usually the last to leave the park after everyone else has gone home. I'm sure she's happy on her marriage and there's no risk of anything untoward, however I'm hyper-aware this is exactly the same set of circumstances that led to my ex-wife's affair.
Like I said, I'm sure she sees me in a purely platonic light (I don't even think I'm her "type") - we just enjoy each other's company (although we're starting to talk more and more about more personal stuff) and our kids get on very well - I'm just concerned that we might be crossing the line as to what constitutes "appropriate" contact. Should I start to distance myself/back off/make excuses to leave early?