Sorry cute co-worker didn't want to go out with you. In future - I'd like to suggest that you phone and speak to someone directly when asking them out - not leaving a message. That's a hard message to return if they don't want to go.
Post D - I found it hard to pick up on clues whether someone was ïnto" me or just liked me as a friend. It is important to try to figure this one out.
Go back to the dating site and maybe try making a date with someone who showed interest in you first. Give them a try and see what happens.
JMHO
have a great day, Wii - I am flying home. Heard there is snow.