cheated and very sad

if one cannot be honest and say I do not love you anymore is because they are using you..and that is what my ex said I WAS JUST USING YOU.. am feeling sooo low soo low sometimes feel like ending my life because it has distroyed my chances of having children for him to use me for little things he did not have the ability to do alone ..he chose to cheat I chose to be honest and ask for honesty but when the honesty came was when he was sorted with someonelse emotionally and do not forgive a cheater they know why they are doing it..