I love you forever and I really make the promise that I will give you happniess come ture. 这个是直译的。我觉得修改哈更好。 I will give you all happniess in my life. Believe me for my forever love
I love you, and I always will. I promised to give you happiness, and I will do. 我觉得用 I LOVE YOU FOREVER太不浪漫了。有首歌 LOVE IS ALL AROUND 里的歌词就有一句:I LOVE YOU, I ALWAYS WILL。我觉得用这个更好一些。