Pug Issues... Please help?

My girlfriends pug seems to show signs of anxiety and stress when I am around. I have been around for severwl months now and she is licking her lips all the time and is yawing alot. Also whenever we go to sleep she doesnt sleep with us anymore and sometimes her ears are back and pinned against her head. I havent done anything to her. Also even though she shows these signs she will come up to me and sit on my lap and want to be pet. When I pet her she licks her lips excessively and stares at me. Does this dog not like me? What should I do? Will this dog turnaround and accept me? Or should I ignore her all together?