YOU SAID:

I'm feeling better since you Returned my calls, so

INTO JAPANESE

あなたが私の電話を返したので、私は気分が良いですので、

BACK INTO ENGLISH

I feel good because you returned my phone

INTO JAPANESE

あなたが私の電話を返してくれたので気分がいい

BACK INTO ENGLISH

I feel good because you returned my phone