In fact, you have bound yourself in a circle, that is, you have given yourself to him. You think you should be with him for the rest of your life, otherwise you feel that you have done something wrong, but let's change it. Looking at it from another angle, what you gave him is your sincere feelings. Since you have such sincere feelings, why can't you choose to trust him once? He may have concealed his previous feelings because he doesn't want to lose you, because he knows that you are a very traditional person. Will you be happy? But since those are his past, we can let go of those past, but it does not mean that we have to accept that he and his ex-girlfriend still maintain a sloppy relationship. Many people say that we can be friends after breaking up, but is there anyone who can? Make sure that each other only limits each other to the yellow line of friends. After all, we are people who have been happy, touched, and loved together. It is difficult to prevent our hearts from being stirred up by past memories, so I think you should be good. Talk about it once. For the sake of your feelings, you should be brave enough to talk together and express your thoughts. If he is willing to lose a former lover because of you, then you should also understand his past. If he really wants to cut off the connection with the previous person, you should give up this relationship calmly and don't let yourself get stuck in making the same mistakes again and again. This is the best explanation for the feelings you entrusted to him.