Confused

I made a choice,
one I regret,
but yet somehow,
I can't forget.

I thought it was right,
at that point and time,
but now I'm hanging,
my life on a line.

I keep thinking about it,
and it makes me sad,
but at the same time,
it makes me so glad.

When I'm with her,
just us in private,
I am so happy,
so happy but.

When we're around others,
I feel so used,
my feelings are mixed,
I am so confused.