Are these some signs that she is biual//?

i'm . and my bestfriend is showing some signs lately that she likes girls. when she first found out i was bi she told me she didnt think she could ever be like that. i just eneded a relationship i had with my girlfriend and my bestfriend knows everything (ually) that we did. don't take this the wrong way...i don't like her like that thats why i don't wanna ask her if she is cause i don't want her to think i like her. and most likely i never will see her as more than a friend. but yah the othe r day she wanted to watch these two girls on the webcam make out then she suggested that we watch llike what me and my girlfriend used to do. then she asked me if i was shaved. she also never likes guys. i don't think shes ever told me once she liked a guy. she sometimes says there hot but thats rare too.she also told me she gets jealous when i'm with other girls. so are these some signs, and how would i go about asking her if she is cause i don't wanna give her the wrong message i just want her to be able to trust me. i don't just wanna blankly say hey are you a or . so what do i do