First: Don’t believe in portraits of couples! Second: as a male! I feel like he hasn’t forgotten you yet! If only you tried harder! I believe we can still be together.
Third: He doesn’t love you very much anymore! Maybe he can't forget you now! But if there was a new beginning, I think he would choose someone else! So I personally feel that there is no need for you to keep insisting! You said you quarreled often! Do you think you will both change after getting married? Instead of quarreling and hiding your complaints all day long, it’s better to let go earlier! Love is like playing table tennis, you have to come and go, if it is just your unilateral efforts! You can't play well even with good technique!