This romance goodbye letter cites the partner's marriage as a reason for the break-up.
Dear {Recipient},
I suppose I have always known that it would come to this. I should have realized from the beginning that you weren't going to leave your {husband/wife} and that I was going to have to be the one doing the leaving, whether I wanted to or not. I don't want to leave. I'm still in love with you. Unfortunately, you're leading two lives, and you are being unfair to me, your spouse and yourself.
I hate myself a little for the lies and deception I have been a part of. I don't want to tear apart a family. Then again, I always thought that when I fell in love with a {man/woman} that {he/she} would love me enough in return to dedicate {his/her} life to me. And for that I hate you a little. I'm not enough for you. Neither is your {husband/wife}. You need to know that you can't have it both ways and that you're hurting a lot of people.
We have had some amazing times together, which is what makes this so difficult. But this is the end. If you work things out with {Name} then I wish you the best of luck. Please don't contact me anymore.
{Sender}
