I also think you need to consult with an attorney. Getting a temporary order of support does not require filing for divorce in most states...if it does, then THINK IT OUT.
If he's giving you more than the L says you'll get later, then keep your cards close to your chest. Listen to your L's advice.
ALSO ALWAYS ALWAYS
keep the financials and legal issues between the lawyers. Do not let him associate you with the unpleasant realities that he has created...
refer him to your lawyer if he begins to escalate things.
Do NOT show him your anger. It does not help you at all.
Do not fuel his negative images of you which will only justify his choice to leave even more.
INSTEAD contrast those negatives with positives...those 180s.;..if you were always late before, start being early or punctual.
Think about three ways you could do that and start today.
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016