 If you liked
Kareshi Kanojo no Jijou
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 ...then you might like
G-senjou no Neko
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Note that IgsG is BL and Kare Kano is regular Shoujo, but both get really deeply into the characters and their psychological issues. The male lead of Kare Kano and the uke in IgsG have similar issues dealing with disassociation and acceptance their true selves, and both go through a process of growth and healing after meeting someone. These two manga really reminded me of each other.