I am so sorry to hear that buddy. We've all been there, we all have had our share of crocodile tears flung at us, we all have been mind fcuked.
It is hard. It is hard to fathom how a person we shared our everything with just simply disappeared and another entity invaded their body. Mind blowing.
Well said, man. I think the hardest part of this is accepting that the above has happened. Telling yourself "this CAN'T be what it looks like" over and over, making excuses for their behavior to yourself and to your kid(s), taking blame for the whole situation, because you just can't believe that someone has changed so much literally overnight.
Except they haven't changed overnight. They've been changing for a long time, and the "old them" is a mask they've been wearing.