I honestly don't know.
It means that person is really happy being with you, that you're constantly on their mind and that they are ready to do everything they can to make you happy.
I love you.
Literally what is says. I love you.
Depends on who says it. there are different types of love
You ask such a deep question so late LOL
Nothing much anymore, it's an overused phrase these days. Just like 'sorry'. People throw it around everywhere.
"But Im not in love with you. I just wanna be friends"
"ok.... what's the catch?????"
To me, love is just another 4 letter word :(