Thoughts on trans sister[24] confessing or tempting brother [28]

THE OTHER SUB DOESNT EXIST AS FAR AS IK CAUSE I LOOKED PLS DON’T HIT ME WITH A DOUBLE STANDARD Long story short we had a falling out and I’ve changed a lot in my appearance I’ve thought of making a dating app account with a fake name and matching with him but idk if that’s a good idea. he’s so bad with girls and awkward it’s cute and makes me wanna teach him how to treat a girl. But not just the social stigma is stopping me but we used to fight a lot and I’m unsure what to do. Should I tempt/tease him as a thank you? I really think I can make him happy, or at least teach him some things