How to convince my mom that my boyfriend is really not a bad person!?

so i really love my boyfriend alot! idk what i would do without him! but my mom doesnt like him cuzb4 he gave me a hickey a long time ago and she thinks he is a perv and wants to get in my pants! its not like that it was a acceindent! and so reccently my bf had been thinking about breaking up just cuz my mom doesnt like him:/ but he also said cuz we dont go any farther then make out. so i told my mom that and she was like SEE I WAS RIGHT! and i broke up with him.....:[ but the next day my bf was like oh nooo i didnt mean i tlike that and we talk awhile and he doesnt care for that! and i try talking to my mom about us getting back together... but she was like no its done and over with he is a perv and i dont like him as ur bf and as a person! what should i do! :'(