I hope you and the girl you loved can happy forever, and this is my last message for you.
happy在这里形容词用作了动词。you loved 是定语,修饰the girl.
I hope you and you love the that girl happy forever, this is for the last time you leave a message
我问的英语老师 希望能帮到你
I wish you and the girl you love be happy forever,and this is the last time i leave you a message.
I wish you and the girl who you loved are happy forever. This is my last message for you.
I hope you happy and your andy. last message!