One night when she is having a bad day she will not be nice and say no to any offers of getting out and doing something the next day and not wanting to talk about what's bothering her. Then the very next day she invites to go to coffee to catch and to hang around for a bit if I am interested. Also tries to make small talk with me the very next day not even saying anything about what she had said the very previous day. I know some will say leave her be, but honestly its hard when you do care for the person. I am currently looking at other females so its does not bother me but worries me about my ex girlfriend because I do want her to be happy and well it does not seem like she is very happy at all with her life.