There's trouble at the beach.  The four swim club members are forced to revisit their motivation to swim.  After Rei asks Makoto about his odd behavior during the training camp, Makoto tells them about his past.
Sorry for making you worry.
Entschuldigt, dass ich 
euch Sorgen bereitet habe.
Siento preocuparte.
Siento haberte preocupado.
Désolé de t’avoir inquiété.
Scusa per averti fatto preoccupare.
Desculpe-me por fazer 
você se preocupar.
Прости, что заставил волноваться.