If you leave, I'm going to jump
Just trust that I go, behind you I'll stay
Get away, it's a lie, better stay, I see myself with you
Or: Behind you I will stay, stay away
It cannot be that we are only friends
You're with someone who you can't love
Thinking of me when you're going to kiss him
Note how 'pensando en mí' translates directly to English as 'thinking on me'
Explain to me how you do it
Probably it will happen that that fails
Lit. Probably, it may happen that it may fail
You're with someone who you can't love