The unfortunately meaning of some words

He Says:

If you're reading this, it means I actually worked up the courage to mail it so good for me. You dont know me very well, but if you get me started I tend to go on and on about how hard the writing is for me. This is the hardest thing I ever had to write. There no easy way to say this so Ill just say it, I met someone. It was an accident, I wasnt looking for it, I wasnt one the make it was a perfect storm. She said one thing and I said another and the next thing I knew I wanted to spend the rest of my life in the middle of that conversation. Now there this feeling in my gut that she might be the one. She completely nuts in a way that makes me smile highly neurotic, a great deal of maintenance acquired. She is you Karen, thats the good news. The bad news is that I don't know how to be with you right now, and that scares the shit out of me. Because if I am not with you right now I have this feeling we will get lost out there. Its a big bad world full or twist and turns and people have a way of blinking and missing the moment. The moment that could of changed everything. I dont know whats going on with us and I cant tell you should waste a leap of faith on the likes of me. But damn you smell good, like home and you make excellent coffee that has to count for something. Call me!
Unfaithfully yours...

She Says: 

I have to tell you this and you need to hear it. I loved you since I met you, but I wouldn't allow myself to truly feel it until today. I was always thinking ahead, making decisions soaked with fear... Today, because of you... what I learned from you; every choice I made was different and my life has completely changed... and I've learned that if you do that, then you're living your life fully... it doesn't matter if you have five minutes or fifty years.  

There's no more songs for us.