So, you're in a taxi and you give them your phone number? Lies, lies and more lies. You're on the money - she's up to something, however unpalatable that sounds to you, no woman, in a secure relationship, actively gives out their phone number to strangers in that situation. Fair enough, if the had been friends for a while, or he was the only taxi in the area and by exchanging numbers it guaranteed a lift when required, but no way on a one off journey. And if it got to 'flirty' stage, how long had the previous exchange been going on?
Anyway, a flat seems a good idea. I'd question, however, leaving your kids with her if drugs are in the house. I know it will cost a fortune, but I don't think you can leave that issue unchallenged. It may affect her career, but your kids health matters more. See your L and explain this to them. I think you could probably guarantee custody on this evidence.
Your W really has to snap out of this. She won't do it whilst you are protecting her, and you will protect her; this I know because I've done it as well. Being on my own has shown me how bad things had got and much of a 'slave' I had become, desperately trying to hold on to W, despite being treated like shite.
Stay strong bud!
M 45 W 52 SD22 S9 D8 BD 6 April 2015 Not living together 4 Dec 2015