Personally, no, I wouldn't do it.
A while ago I would have been willing to have my ex back so that I get to see my kids more.
I've dived into and worked through large chunks of my stuff and as far as I can tell she hasn't so much, if at all (from my opinion she moved on too quick).
Now my relationship with my kids is stronger, I'm healthier in mind, body and spirit and things are at the beginning of a serious up-tick, upgrade and simplification to life overall!
There are plenty of fish in the sea... just avoid mercury filled swordfish