Going after Exes daughter

When I was dating my Ex (now 40), she was twice my age. I was 20 at the time. Now Iím 22, her eldest daughter is turning 21.

It didnít workout cause she wasnít being faithful and I figured I needed to stick to my own age range. Itís been a few years since Iíve been out her view, but lately she came up on my Instagram feed. God sheís got some beauty.

What do you guys suggest? How should I handle it? Ya I kinda want something long term now that Iím done messing around.