His ending in IV: he leaves home to go and fight, leaving a note to his Mama, promising to come back "when I won't be an embarrassment for you anymore". The ending shows that he'd sent a letter to her saying he was in Hong Kong, prompting Samantha to fly outto him.
"People still stare at me sometimes, but I don't let it get to me. It's okay to make mistakes once in a while. As long as I get to spend time with my Mama, everything will be just fine."
Shaomei: "Although I care about the town, I care a lot more about you two... So please, don't be so reckless, okay?
Chun-Li's Third Strike ending too. Specially when she has a flashback about how she rescued her kidnapped adoptive daughter (the little girl seen in the prologue) and is seen training her and many other kids.
The Ties that Bind gives us Ryu getting out of his post-Satsui no Hado Heroic BSOD much to Sakura's joy and the scene at the end where Ryu, having won against Seth, collapses to the floor and is happily tended to by Ken, Eliza and Sakura.