omgggg my husband!!

He always leave his iphone at home and i didnt know his password but now i know... one day i woke up and i saw a girls name we can call her " Julia " and she send a voicemail she said something really dirty and she said do you miss me? i was in chock!!!!   He doesent know that i know his password and i cant belive .... he is looking for other woman he has so many fake names on diffrent sites and one with a real name... He is married and looking for other woman!!!!! whyyy???? how should i tell him? i cant say i know your password and i know what you are doing ? 😰