Do I need therapy ???

It’s been about a year since we’ve broken up and I can’t keep a relationship because every time I do I compare them to how much I loved him. We were together for 2 years I know that doesn’t seem like much but for him being my first love I miss him so much I woke up in tears because I had a dream me and him were together again. I see him everyday and he is now with my best friend which makes it even worse when we hang out I try to put on a fake smile but it is killing me inside. I don’t want to be friends with him because it hurts too much and I know how much he loves my his new life . I just don’t know what to do I want to get over him but it seems impossible. I still remember every little thing he did to make me feel better when I was sick he used to stand right there holding my hair back saying he wouldn’t have it any other way and When I was crying he wiped away my tears and kissed my forehead telling me everything will be ok as long as he was there and now that he’s gone nothing is ok. It’s hard to get over that when someone sees you at such a vulnerable state and I can’t tell anyone about this because everybody will think I’m stupid and I know he doesn’t love me back . Part of me wants to get rid of him but at the same time I couldn’t live without him.