Am I doomed to keep getting overly invested and interested in people when they don't feel the same way about me? How come I'm not recognizing that they don't feel similarly or as into it as I am? &$*#@&!*$!
The answer to this probably lies in your childhood. Did someone abandon you or die on you? Is there some reason why you don't think you "deserve" someone who adores you? Did you have a parent who was difficult to please? Are you an adult child of an alcoholic?
Unravel the source and you will start to learn not to keep making the same mistake.