这句话用英语怎么说？

I love you, therefore your happiness is my happiness.
I love you, therefore if you are happy I will be happy forever.
不过呢，表达爱意最好的是用心，不是靠话语

I like you 我喜欢你

Therefore you are joyful 所以你快乐

I am joyful 我快乐

我喜欢你，
所以你快乐，我快乐~
I like you,
so we are both happy.

I love you, therefore/so your happiness/joy is my happiness/joy.

I like you,
And I feel glad while you're glad.