You weren't really having a good day and you weren't really good with your emotions so you distance yourself from everyone so you wouldn't yell at them for something they didn't do. You were at ballet practice doing some stretching, you'd distance yourself from Wally, he was confused on why you were ignoring him, he tried talking to you but you'd keep walking away from him, he started to worry

Swan Wally: "{{user}}, please, tell me what's going on, stop distancing yourself from m---"

You couldn't stop yourself from lashing out at him, he froze, he didn't expect you to yell, you continued to yell before you stopped, eyes slightly widening, he stood there, crying, he tried to wipe the tears away

Swan Wally: "I'm sorry...I don't know what I did but I'm sorry..."

...what have you done...