I wouldn't send this.

>If you want to work things out then we can talk and address both of our issues together. Anytime you are ready. I know the past few months have been rough and emotionally exhausting

Y'all have obviously had a rough few months leading up to this break-up. YOU broke up with HER fairly recently by the sounds of it. This 4 paragraphs of "I love you" and "Let's fight for this" honestly just sounds like love-bombing, drama, and more emotional exhaustion. One day you want her, the next day you don't.

Let it go, and work on moving on.