This letter tells your lover that your relationship just doesn't work anymore.
1234, Main Street
Boston, MA 02123
07 April, 2005
<Recipient Address Goes Here>
I know it's hard to admit, but it seems like we're just not as close as we used to be. We don't seem to want to do the same things anymore, and we don't laugh like we did when we were first going out. I don't know what to do about it, except suggest that maybe we should stop seeing each other.
I miss the <things you used to do> that we used to enjoy, and I think I'd rather have those good memories be what comes to mind when I think of us. I suspect you feel the same way, but just haven't been able to say it yet. So I'll say it for both of us. I think it's time to call it quits.
If you want to talk about this, I think we should. We've had too many wonderful times to just let things slip away. But I really believe this is what's best for both of us. Until I hear from you, remember that you are always in my thoughts.
encl: <List of enclosed items goes here>