They are not in the same timeline. I don't recall them ever meeting. So my dear Watson I can say with much confidence....no.
knuckles love 3 girl call rouge the bat from sonic x, Sonia the hedgehog from sonic underground and julie-sue the echidna from sonic comic but he did not like shade the echidna and tikal the echidna
no tikal does not love shadow also shadow and tikal NEVER even meet each other and shadow never really finds love
No, he doesn't and Sonic doesn't love him back.
No, because shadow loves maria, even though she's dead. I'm not sure about tikal, but if she loves him she does not have a chance. shadow maybe needs to get over losing maria.
No one he is alone
NO!
Shadow loves Maria, he doesn't interested in love to anyone else.
She's a fangirl of Sonic the Hedgehog.
Maria, so, yeah, love. love
No
No one
some day may be with a morttal hedgehog like him may be shadow does need a girlfriend