Search Results: attracting girls with boyfriends

So I am a girl and I have a friend nearly 20 years older. We have become close recently. I am bisexual and her behaviour confuses me a bit. I don't want to get mixed messages but because we are new friends, I kinda don't want to ask outright just yet about whether she is attracted/keen on me. She doesn't know I'm bi by the way. She is a big Christian too. The thing is, over the last week she has been acting distant. I posted a pic of my ex-boyfriend (who she doesn't even know about) in my Whatsapp status, she saw it and then suddenly I couldn't see her Whatsapp profile pic within 30 minutes of doing that.

Anyhoo, basically
1) I have caught her just staring at me, for no reason.
2) We were standing next to each other to get a group picture and I held her hand above my shoulder and she took it away and put it tightly around my waist (don't know if that is a good or bad thing). When I turned to her to say something, she was a bit flustered and red in the face.
3) When I speak to her, she watches my mouth sometimes and looks at my chest. I find this odd considering I'm sitting right next to her and watch her do it. 4) She checks my WhatsApp statuses quite often. 5) I told her my friends are the only people who get my jokes and she got upset and said, "what about me? I laugh at you all the time."