Infidelity and threat to life are what could make me quit my marriage. Declined love or communication breach in a marriage can be corrected easily if both partners want the marriage to work but any marriage stained by infidelity hardly get back on track. Infidelity is a sign of complete disconnection from one's partner and anything that would make my partner disrespect me in such manner means that such a partner has already made up her mind to move on and I'll let her be. I'll forgive her but we won't be together any more.