My bf & I have lived together 4 years. Suddenly on our phone bill my bf was over on his texts & his minutes. I looked through and found dozens of texts to one #. I slydialed and its a girls #. I wouldn't be so upset by just that but the text messages are starting to be back and forth at 4am (he goes to work at 4am). The girl is a cust svc rep in his building who works 8-5 so texting for hours at 4 am just doesn't seem right not to mention the phone calls to and from her are always when he's not home. I need advice on how I should approach this. I don't want to accuse him of anything but somethings not right here. What if he just blows it off as saying it's work related?? If i randomly ask to look at his phone he lets me but every text is deleted except the ones from me. How can I handle this?