Am I wrong?

Zayn’s Mommy • Lost Baby Zayn👼🏽@22wks💙3.14.18, Blessed with a beautiful baby girl🌈👶🏽💖04.2019
My bf is locked up but I'm completely faithful to him so today he calls and I'm with a classmate going to get something to eat this classmate is a male. I could of easily lied to him and told him i was alone or going home. Now he's mad at me. He hung up on me and I don't think he's calling me back.I told him the truth. What did I do wrong?