Help idk what to do should i leave or should i stay

so my bf and i have been dating for 2

months, and recently he just met my whole family i mean brother,sister,mom, dad and more. so he a nice guy i mean i love him with my life, i can see me with him for a long time he spoils me so kind. He’s the only boyfriend I could actually be myself around but when we meet it was the first time because he lives 35 minutes away. I was looking through phone and saw i name of a girl and he was saying I love you babe too so I clicked on the message and it’s him and this girl texting back and forth and i couldn’t see it all because he snatch the phone out my hand and we he gave it back he deleted the chat but i already saw but when I confront him he broke down and also cried saying that he was wrong and that there’s no excuse but he can’t leave me but anywayssssss yea i’m so stuck should i leave or stay.