Simply replace the unfilled areas such as "[]" and "[date]" with your information.
Dear [name],
There comes a time in every person's life to sit back and reflect and what's been and what will be. A time to sort of savor one's accomplishments and settle down for the long road ahead.
That time is not now. We're getting married!
That's right, things were a little too quite on the home front. We're going to merge our bank accounts, homes and lives, and become one.
It went down on [date of engagement]. It was a really beautiful moment. And while a part of me wishes you could have been there, another part is glad you weren't: it was the perfect time for us to begin our new lives together.
I'll let you know about the specifics of the wedding as they become available.
All the best!
[name]