1.我只是难过,不是真的想要哭
应该用just,不是only
2.我们分手以后,你有没有感到好点(fill拼错了）
do you feel better 或者 have you ever felt better
3.你能明白我有多爱你吗?
Can you understand how much I love you?
4.只要你快乐/你的快乐是我唯一的愿望
前句不完整,少了半句话；后句应该是Your happiness is my only hope
5.我只是想你了
I just missed you./I am just missing you
6.可能你只是太累了,我知道的
Maybe you are just too tired,which I know./
I know that maybe you are just too tired.