boyfriend

my boyfriend is not for me. i don’t see anything with him for the future and we are complete opposite people. i’m really talkative and outgoing and he’s super reserved and quiet. i want to break up with him because i’m more sad than happy. but whenever i go to break up with him in person my mind completely changes and doesn’t want to. idk why that’s happening. suggestions? (there are more reasons why we don’t work out)