Whenever I'm with my girlfriend and she gets a text message or snapchat, she goes under the covers to look at it. When we're outside she seems to slightly move her screen away from me. When I go under the covers to see what shes doing she immediately puts her phone down. Even when we're cuddling she would put her phone behind my head to text. I questioned her about it asking if it bothers her and if she thinks I'm trying to look at her phone screen. She got mad telling me what she thinks she trying to hide from me. I asked her who shes texting and snapchatting but she told me it's her sister. This was a bit crazy on my part but I checked her and her sisters snap score but only hers went up by a lot while her sister only went up by two. Shes upset at me that I think shes hiding something. Am I just being paranoid or AITA?