I'm sorry to hear that. I had something similar happen to me. I also want to know how to cope with something like that. The most annoying part is that the feeling doesn't go away and it seems like the only thing I can hope for is if they give me some attention and that would just make me happy and my life better for a period of time. No matter if I know it's manipulation done by a narcissistic person and not a real personality and just a reflection of what I want them to be the feeling won't seem to go away. At least that's how it feels for me