你让我很失望,我真的伤心了的英语怎么说

You let me down, I 'm very miserable.

如果你要口语式的回答：You've really made me down , my heart hurts deeply.
如果你要很正式的：I am so disappointed in/with you, I really got hurts.(be dissapointed in/with sb对某人失望）

You let me very disappointedly, I was really sad

you really let me down,you hurt my heart deeply.

you made me so disappointed ,and i was really hurted

You disappoint me a lot
You hurt my heart hard