Its called "having social graces" not dominating a conversation and being tolerant of those who do. My guess is there is something lacking in her world and she is searching to fill the void. She may get better with time, or if she has deeper issues, it may get worse. I feel your pain, as it is very frustrating. When I encounter someone like that, I give it time. If I can find an a good quality in that person, I usually can look past the talking, if that person is turned "inward" and it is all about them, then I tend to avoid them. Good luck and may you find grace when dealing with the situation.