PS If you are sure you want the R to end, then the possible affairs he had with others is of no consequence. (Unless your lawyer cares. Ask if it matters legally. I am not sure what your legal rights are in this sitch but it IS worth a visit to a L. As an attorney myself, NOT advising you but suggesting you retain a L for at least an hour, Just to see if common law rights or an old Div agreement applies, and what your rights are. Don't assume you have no rights. )
Otherwise, this "poss cheating" information only tortures you more, and keeps you stuck in your pain. Chances are, You do NOT need this info if you're ending. Now, if he someday comes around wanting a reconciliation, again, then cross that bridge when you get to it. For now, you're splitting up from a guy who has left 4 times and when he returns, he hasn't ever changed enough to keep from leaving again. Sooo, as pro M as I am, this is clearly a pattern. What can you change? YOUR RESPONSE, that's what.
good luck!
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