Kažkam tavęs reikia, bet ar TU man reikalingas

I suppose you are willing to say it to a guy, so the correct translation would be "Kažkam tu esi geras, bet ar tu esi geras man?" But honestly somehow this doesn't sound too Lithuanian. Depending on the situation, if possible, i would use "Kažkam tu tinki, bet ar tu tinki man?" (You fit to someone, but do you fit to me? or "Kažkam tavęs reikia, bet ar man reikalingas?" (Someone needs you, but do i need you?)