He is confirmed gay and had a crush on another character, Jest, when Catherine Pinkerton asks him "Did (Jest) know (you liked him)?" and Hatta replies with, "Does it matter?" as Jest was dead.

Does jest love Catherine?

Jest is Catherine's main love interest, a boy she once saw in her dreams. He is the court Joker under the King of Hearts, but actually the Rook for the White Queen in his homeland of Chess who was sent to capture the heart of a real queen.

Is Heartless by Marissa Meyer LGBT?

MM: Yes, definitely. There is one queer character in Heartless, though their sexuality plays a rather small part in the overall plot.