My attempt at translating the lyrics (some lines don't make much sense, I know, but I didn't know how to spin it otherwise).
clover1215, correct anything that might be completely off

STEP you
1,2,3,4 little by little 1,2, STEP you like that
I want to get to know you
1,2,3,4 little by little 1,2, STEP you like that
No one can stop me

1,2,3,4 since when 1,2 STEP you in that
Becoming greedy, that's me
1,2,3,4 since when 1,2 STEP you in that
I want to have sole possession of that smile
-----------------
is this LOVE?
"Why isn't it me" I said
It's useless to regret
but I can't change it either

It's as if you never saw me
You were right there
But it felt like you were far away

How can I express this feeling?

When did you start pulling away from me?

Nowadays, if I'm aware, I pretend
to look past it even though you're lying and cheating
But it all feels so pointless

Is this that feeling that people call love?

By the way, I've seen the translations & romanizations from AHS at other forums, so if you take anything to another place, I think it'd be nice if you credit the individual user as well.