... but, by the nature of your position, you have to be somewhat dominant in your job. It's quite understandable.
Somethign I have noticed about people is that most people, women more than men, in "power" positions in their jobs prefer to let that power go in their relationships. They seem to prefer a submissive position in their relationships, rather than have their dominance in all aspects of their lives.
You can use colors in your text by using the color drop-down box located just above the box in which you type your text for these messages. You can select from a list of colors, then type what you want in the box that pops up.
Unfortunately, there aren't any actual signatures, as the ones you would have in your email, but you can use the boxes above the text window and the UBB code to write a signature. Maybe even save it to a text file for future reference.