Question

1. I am happy with you.
2. I am happy because of you.
3. I am happy about you.

(What does #1 mean? Does #1 mean #2 or #3?)

Answer 1

#1 generally means I approve of what you're doing. It can also mean "I love you."

#2 means that "you" makes "I" happy because of actions and expressed love. It might also mean that without "you," the "I" would be unhappy.

#3 means the "I" is happy because of something "you" has done or achieved.

They're all generally similar, but not identical.