this is kind of complicated so bare with me basically Morgan tony starks daughter was not five in endgame she was sixteen in infinity war so in infinity war her and peter are sixteen and they are dating when they both get blipped. but Morgan has a half sister y/n Tony's daughter and some random women's daughter. and when y/n was 11 Morgan was 10 y/ns mom was diagnosed with cancer so y/n stayed with tony and Morgan for six months. Morgan hated y/n and tony always treated Morgan so much better than y/n and in infinity war y/n gets blipped to but before the endgame fight y/n , Morgan , and peter come back way before the other's y/n goes back home and soon finds out that....... . .