Don’t want to be his wife

So long story .... I’ll make it simple. I knew my boyfriend/daughters father got me an engagement ring. I just didn’t know when he would pop the question

Because of the things we have been through I told him do not ask me anything if everything you have done since we been together are not on the table. He avoided it but eventually sat me down and told me everything . I already knew he had cheated once before in the past but this times he told me he had entertained another woman . So he basically told me everything so w can move on and I can forgive him so he can pop the question knowing he had no secretes.

I love very hard and I am still hurting from the infidelity but I told him don’t ask me and that I no longer want to be his wife . He got very upset and said the purpose of dating is to date to marry and I have become a better man for you. I honestly don’t care . My response to him was you are absolutely right ppl date to marry not to cheat with that being said your only option is for us to continue dating but you will no longer have the option to marry me . You ruined that not me .am I wrong no