Any advice ? Kinda long but W.E .

So the guy i am dating use to be my bestfriend since a little before i became a freshman. We talked alot and eventually around my sophomore year we started dating and it only lasted Two months because so many girls kept on trying to ruin my relationship ( They went over board with shit ) . And we still talked after we broke up , Around my junior year , i ended up PREGNANT . Yes it was his , I didn't have nobody in me but him , he was happy and we eneded up getting back together . Around my 3rd month i had a misscariage. I stopped talking to everyone and i became very depressed. We still dated until  10 months . We started arguing alot and I couldn't take it because it was the month were i was supose to ive birth to my baby and i had so much grief and depression in me . We ended up braking up and he got with a girl 5 days later . who was my age , she has a kid around 5 years old . I was angry because I didn't think i was gunna get replaced and i was hurt real badly ! 2 months later i ended up getting him back . ( he kept on cheating on her with me ) . He left her and ot back with me .we been for longer than 2 months gain . He wants our old date so technically in his head we making a YEAR on Friday . Honestly ? I argue alot due to our past & i'm hurt and i feel like he gunna cheat on me . Idk if i should let it go or try to have a serious conversation wih him ? Suposly he's getting me a promise ring this weekend for our one year but tbh ? I don't know i want anything. Or if he should get something from me ? 😓 Like man he my high school sweetheart and he was the father o my unborn child , but ... Idk ? His ex's recently messaged me on facebook talking shit . And ugh . Idk ? What do you girls. Think ? 😓😓😓 should i try and get over things and buy him a gift or ?