friend called my phone, went to boyfriends #?

Ok,

My friend and I were on the phone and my phone died while we were talking. (we all have iphones , not sure if this is important)

She calls me back and she hears a male voice answer, she asks who this is and asks if it’s my bf bc who else would answer my phone? he says “yeah how’d u get my # is everything ok” she says “i called samaura what do u mean….” and he says …

back called died important iphones phone privacy talking voice