IS IT WORTH IT? ARE TEXTS A GOOD ENOUGH REASON TO BREAKUP?

I FOUND TXT MSGS IN MY BF PHONE FROM HIM TO ANOTHER GIRL AND VICE VERSA THETEXTSS DOEST SAY MUCH, BUT "HEYWAS SUPP".HA VENTT TALK TO U, WHERE U BEEN, U SHOULD COME THROUGH( TO HIS JOB) AND SHE ASK HOWS THE GF AND HE TELLS HER "ROCKY" (TALKING ABOUT OUR RELATIONSHIP) THE MSGS DONT SAY MUCH ..BUT IT LOOKS LIKE A STARTING OF A RELATIONSHIP I CONFRONTED HIM ABOUT IT HE SITS ME DOWN AND SAYS THAT HE IS A FLIRT, HE DONT KNOW WHY, HE SAIDNEVER CHEATED ON ME, NEVER TOOK THEM OUT , HE JUST LIKE THE FLIRTING, HE CLAIMS HE WOULWOULDN'T HIMSELF IN THAT PERDPREDICAMENTEYTHEY RET FRIENDS NOTHING MORE. I DONT KNOW WHAT TO DO, I FEEL LIKES THERE MORE TO THE STORY THAN WHAT HE'S TELLTELLING DOES ANYTHING ABOUT THIS SOUND A LITTLE OFF?