Its his loss, not your. Just tell your self that you deserve better and God has the best in plan for you.
Sometimes what we think is good for us is actually not what God wants for us. Its good he revealed him to you in time before u made the biggest mistake of your life , coz it would have been worse if u caught him cheating whilst ur married.

You are beautiful, you deserve better , God has the best man in reserve for you. Just hold on and believe it . it will come to pass and your tears into joy.

Sending you hugs..