How long will it take for my (then girlfriend) now fiancee to feel secure again?

She's still hurt about the break-up from March. She broke up our relationship of 6 years and I was obviously heartbroken. I've already proposed two months ago, which she accepted but wants to postpone wedding plans for the time being (she doesn't seem very enthusiastic anymore like in the past), and we've set up an appointment with couple counseling. I was willing to expediate the wedding for May, exactly within a month but she's the one not wanting it.

I understand I've made several mistakes and really screwed up but I'm changing to a better person, better man and partner. I regret taking her for granted for too long but she said it doesn't take away the fact that she had to break-up and felt unloved, insecure for a long time. I've given her my commitment and would gladly give her children, the family she wanted. Will she stop being hurt eventually and trust me? How long will it take to make her feel secure again? I've proposed with her favorite gemstone (I thought we could start all over, expediate with the wedding and she would forgive) and it was expensive, I'm already there for her, what more does she want?

How long will it take for my (then girlfriend) now fiancee to feel secure again?
Post Opinion