Could Have Been Both of Us

Yes, I was confused and yes I felt used but I new from the start you would never abuse

and kiss the lips that made me shake

what was I suppose to do?

Its hard for me to see you with your girl now

when deep down I know your better somehow

Sometimes I wish theses feelings

I don’t get why you had to leave,

You are more than my love, you were my very best friend,
The one who we swore that we would stick through it till the end. I like this line. It's probably one of my favorites in the whole poem. Just, the beginning of it seems to be worded a bit awkwardly, you know? Keep it, but maybe try wording it a bit differently?
You had it all, my trust and my love, it was all there Right here, and isn't really necessary. Placing a comma there would smooth it out a little.
I never had the time to show you how much I cared
Yes, I was confused and yes I felt used - but I knew from the start you would never abuse
I knew the feelings you had for me were true, Right here, the rhyming feels a little forced. Rhyming's cool and all, but you don't have to make it rhyme so many times within the lines as well as at the end. Where I put the dash, you could actually break that up and make it into two separate lines, and that one line could just be taken out.
The time we shared gave me all these plans
Of you being my man, being able to hold your hand. Again with the forced rhyming and such.
All I wanted was to look into the eyes that made me smile
and kiss the lips that made me shake. You seem to have an AA BB rhyme scheme going, and having smile end this line sort of breaks it. If you combine these two lines together somehow, it'd keep the pattern.
Now I'm here with these memories in my head I cant erase
I followed the path with you, let go of my past for you,
And all the plans we had were gone. What was I suppose to do?
You told me you would never make me cry, that you would never lie.
Now I'm hearing all your alibi’s, about the times I didn’t try. Forced rhyming...
You brought me joy, you made me glad, but what about the times
You were going to make me sad? Maybe combine these two into one line and reword a little? Sorry, but this sort of throws the rhyme off too...
I understand, now, when you told me how hard it was to see me with another man This line is sort of lengthy and wordy. Rewording it a little could help the flow a lot.
It's hard for me to see you with your girl now,
When deep down I know you're better somehow.
Its hard to see you happy when I thought your happiness was here.
I thought my touch was the thing only thing that made your pain disappear
You chose to go with her, and that’s something I accept, Nor do I neglect The bolded part would work better if it started the next line.
The feelings I felt for your still haven’t left.
I always pictured us together, and I hope you see that I never said never.
Sometimes I wish theses feelings would have lasted forever,
Yet you left me in the storm facing all this bad weather. I really liked these two lines right here.
The feelings died, well for you, because I'm here living a lie,
Thinking one day you will be back by my side. Forced rhyming.
I don’t get why you had to leave, why did you deceived, and
made believe that it was always me, your future would see.
The feelings we felt were so wrong, but you never understood that it was they were right. Keep the tense constant.
And I knew the road would have been rough but all we had to do is was fight
To make it to the times where we see the light, Even in the dark nights. To keep to the rhyme scheme, take that part and elongate it into its own line.
So to make your answer simple,
No, no one should give up for love,
Because if you would’ve been patient, it could have been both of us.
But baby, I'm sorry you gave up.