I am all about fighting for 50/50 custody. Your relationship with your son is the most important thing. His relationship with his mother is just as important.
OM is an issue. Who knows when it started or how far it has gotten. Be more attractive than him.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712