Sonic boom: my love can heal you. (Boom Sonknux)

When Sonic had enough of being rejected, unwanted, and unloved he decided to go back to mobotropolis where he was appreciated...but when he heard his sister and mother died in an accident...he felt so depressed and became very ill.....Knuckles who has a secret crush on Sonic had noticed something was wrong and decided to help Sonic anyway that he could before he goes back to his hometown with his brother for good....