Steve, I highly recommend that document everything your W is doing and noting the date/time. If you end up getting divorced, women like your W can be vicious and go for the throat in court. Protect yourself and your kids.
This is very important. Especially now since it sounds like your STBX's new job is a hooker or running drugs...
Me: 38 W:31 Kids: S16(mine from previous R), D10, S9, S4 M: 10 years T:12 years BD:Jan 3, 2018 W moved out: Apr 13,2018 Filed for D: Jun 2018 D final: Sep 2019