Instead of focusing on whehter or not to have expectations of her call, focus on how good it made you feel to send her flowers.
Remember, focus on GOOD, period. Not always easy, but doable.
Also, remember that you were a happy and enjoyable person before you two ever got together. And YOU ARE STILL THAT SAME PERSON. Have you aged, sure. Have you made mistakes, sure. But deep down, you're still the lovable person she first knew and you just need to remember that. I'm saying a little prayer for you.
YOU ARE NEVER ALONE.
"GET BUSY LIVING OR GET BUSY DYING...."
And... for your viewing pleasure.... http://www.laughyourway.com/video/ Best video I've seen that helps define the difference between Men's & Women's thoughts.