I know it is hard, but she has replaced you with another man! You are showing her weakness doing this. Yes spending some time together for the kids is fine, but what are you hoping comes from this?

I think you need to not be so available. Maybe decline doing some of the things. So her you are moving forward with your life as well and will not be a back up plan. You can still be involved in some things to show her the new person you are becoming and show strength.

Read the detaching rules and thread. It will not be something you can just all of the sudden decide. you have to take the steps putting yourself first and then it will just start happening.

M 37
W 34

T 12
M 8
D 7
S 4

Need break 4/12/15
W no ring 7/7/15

Separate room 4/12/15
Separate living suggested 8/15
W moved out 11/1/15