Rebuilding Trust in The Relationship

Rebuilding trust after infidelity is a two-way street, requiring almost superhuman effort. Some couples can't manage it, and ultimately go their separate ways. Even if you don't stay together, the work put into giving your relationship its best chance to recover is work that can help you avoid repeating bad patterns.
Start by keeping your promises to one another. If you say you'll be there at 7, don't think 7:15 is OK. If you promise not to bring up the cheating in front of his friends, don't do it.

You may well be feeling vulnerable now. Use this time to build genuine self-esteem by choosing a more fulfilling, interesting life. Spend your free time with people who bring out the best in you.