Well Birgit, I love verse 3, you could make a song out of this, with 2 vers and 2 refrains, The structure seems fine aswell, though there are alot of "you's" at the end of every line, be carefull with that.. Though in all 4/5 for a good poem :)

"Cried so much tears.. made an ocean so deep..
And now I'm drowning in it.. "

So sad... it's awful when the one you love, loves someone else.. The pain can get to much at times..
But be strong, it gets better..
Excellent wording choice
5/5
*Gem*