I’ve had a couple of strange girlfriends. I had one take off and move to another state without saying anything. I was afraid she got mugged or killed or something. She had had some troubling experiences in the past which caused her to behave strangely, but I didn’t know it at the time. I had another girlfriend that dumped me, took me back, and dumped me more than once; and never gave me a reason. She had personal problems too, which I didn’t know about at the time. You will recover. Give it time. And try to let go of the pain so you don’t bring this pain forward with you to your next girlfriend.