Untitled Part 1

(Y/n), a smart, creative, if not slightly hypocritical woman, has just broken up with a long standing relationship with a narcissistic boyfriend. When faced with another man from a different dimension whose ego is as big as himself, When she doesn't put up with his bullshit and beats him at his own games , will feeling s develop or will this be a full on war?
NOTE: IM TAKING REQUESTS FOR ONESHOTS FOR NSR.