Asking out an old friend?

So been on the poly train for about 3 yrs, wifey and I have been on/off since 12 (same age) and got married at 23 (now 29) so far she's got 2 partners. one she's crushing on that just decided to be friends but will join us in our orchard and the other turned out to be one of my buddies brothers 😂 both are gay and some of the nicest people I've met plus they love plants more than me🌿 so I get plants and soil all the time.

Anywho an old friend of mine and I started talking and I found I still hold an attraction towards her. Now we went out in the past but never actually broke up( life yada yada ) so I'm wondering if I should try to rekindle or if I should just let it be?

You miss all the shots you don't take IMO but I like a pinch of caution and a bucket of research.

Which is why I'm asking since from what I've looked up ex dating tends to be a no-no but we never actually had a bad moment or breakup so yeah thoughts and such?