Shamillah, DO NOT THINK OF SUICIDE. Death is from the devil - do not do his evil work for him. You have children and they need you ALIVE.
Dear one, there are many husbands and wives who cheat, unfortunately. If every spouse who was cheated on killed themselves, half the world would disappear. Don't let a person run your life when GOD should be in charge. Your husband will make his decisions and you need to make yours. Pray to God for guidance and strength. Get a good lawyer, in case you need to protect yourself and your kids.
Be strong and be blessed. If you're mad at your husband, the best "revenge" is to KEEP LIVING and LIVE WELL.