This is gonna be long😭....

How can you get to the point where you can 100% trust your man not to cheat or do any dumb shit. i’m struggling so much but i don’t wanna tell anyone because the answers just gonna be break up with him. he cheated in the beginning of our relationship but not physically . he was talking to another girl and talking about the possibility of them dating and shit. i broke up with him as soon as i found out. we ended up talking it out and a lot of things changed . the relationship became way more serious . we spend every night and most of the day talking on the phone if we aren’t physically together . we have a lot of amazing moments full of laughing and pure happiness but we also argue a fuckload . he talks to his ex’s and he always offers to block them if it makes me feel better but i don’t wanna be the type to be like nope , see ya , don’t talk to them . but i can’t help but worry that he’s doing dumb shit . they talk on snap and both of his ex’s have boyfriends but i know girls are straight up snakes and sometimes don’t give two shits . and what scares me the most is that each day i tell him i love him and he says it back that he could possibly be saying it to them . or flirting or something . i don’t know what to do . i hate feeling this way . and his ex’s are so so so beautiful . i’m not a spiteful bitch and gonna say their ugly because i’m not blind . their so beautiful and i don’t even compare . i know a lot of this goes back to how i feel about my self appearance but i know i’m not ugly but i just can’t help to think their prettier than i am . i guess its ya stereotypical girl thing . i genuinely hate this . i don’t know what to do anymore . if y’all got any advice , please pull through with it . i’m tired of feeling like this.