I M(23) in a relationship with my M(27) boyfriend and thinking to end the relationship

So I male 23 as Been in a relationship with my bf male 27 we been together for 1 year 6 months and couple days we been happy dont really have any problem we don’t hide nothing we don’t hide nothing but today we had an conversation it kinda hurt but it’s what it is he said he keeps dream of an ex that hurt him he said he keeps dreaming of of and it’s hurting him and I tried to help him find out why he keeps having that dream i ask him if he miss the person and if he let go of the person he said he doesn’t want to be with them are have feelings for them he loves me and want to be with him he said he feels at home and peace with me but he misses the person and the lust and want closure i even asked him if he as the person number he he admitted to having the person number he lied to me csuse he said he didn’t had any of his ex number he told me he felt better csuse I didn’t run him away are say to break up i understand what he is saying but I feel hurt cause he is still in love with the person but he says they hurt him so he can’t get back with them no matter how much he would want that so I don’t think he ever loved me just used me as an replacement i dont know if I should drop it are breakup cause i feel hurt thst I won’t lie about he still is in love with that person no matter how he says he love me i can’t see it no more and feel I will always be getting hurt and and be in the middle of someone past I won’t lie i do love him that’s a fact and I don’t want to show that I love him and at the same time I am going to get hurt again i been hurt before it took me two years to be my self again I got raped before and I just can’t afford to be hurt again my heart can’t mange so much hurt so should I leave while the door is open are should I put it in the past and not think on it