How about a bit of validation and empathy guys? Kevin's pissed off. Understandably. But in reality he probably nows 'telling off' his W isn't going to help anything, but I think it's harsh to classify a telling off as emotionally hurting his wife.
On the finances, it all depends on rationale. Go for what's fair and what's best for the kids. That may be more than 50%, that may be 50/50, that may be less.
Kevin, it's OK to feel angry, just dont let it rule you, otherwise you're still just dancing to her tune, really.
Kaizen, good, measured response, is go along with what you said.
-- Me: 47 WW: 35 SS: 17 D: 5 T: 7 yrs Engaged: 2 yrs OEA confirmed: August 17 2016 ongoing since April 2016. OEA continues (with occasional breaks) BD2 - W says will visit OM in Jan 18