Unknowingly ruined a relationship ?

I (F26) am having a real hard time sleeping so I decided to check my bf's (M24) phone We're together for 7 months now and we can access each other's phones naman. I decided to check his messenger and use the search prompt para lang sana icheck how he talks to his friends abt me. Tapos when I searched my name, I found one message from a girl. Curious, I opened the convo. We're from different provinces so I had to use the internet to translate pa what they were talking about. That was when I found out na sila pa pala nung girl tho nagkakalabuan na sila during the time he confessed that he likes me. LDR sila since nasa province si girl and the convo where my name was mentioned is her asking kung sino ako and bakit tinutukso sya sa akin ng workmates nya. So yun imbes na antukin, lalo ako nagising kakaoverthink kung icoconfront ko ba sya on what I found out or hayaan ko na lang para di kami mag away kasi di pa kami nagkakaroon ng away talaga as a couple puro tampuhan at inisan lang