r/masterhacker

so today i noticed my husbands blue tooth was connected to my blue tooth? and i was shocked? i dont have my blue tooth on all the time, as i try to turn it off as soon as im finished using it. but tonight when i went to turn my blue tooth on, i noticed i was connected to the blue tooth on my husbands phone? and ive never even had his phone appear on my blue tooth list before... EVER? i didint even think it was possible to join phones by blue tooth without certain settings being turned on first? so how is this even possible? would my husband have had to deliberately pair our phines? and if so, how would he have done that?