There is a straightforward reason for being blacklisted - duplicate
domains. Your other site, http://www.candyboquet.com/, contains
"Don't create multiple pages, subdomains, or domains with
substantially duplicate content."
In these circumstances, Google makes a decision as to which copy of
your site to keep in its index, and which one to drop. They have
chosen to keep Candy Bouqet. This is unusual, because usually the site
with the lowest PageRank or least incoming links is the one that they
drop. But then again, Google is just a machine, and it may have used
other criteria we are not aware of.
For example, WHOIS records indicate that Candy Bouqet has existed longer:
Candy Bouqet first registered: 15-Nov-1995
AC Bouqet first registered: 03-Apr-00
Merge the two sites into one - AC Bouqet.
Ask everyone that links to Candy Bouqet to point their links to AC Bouqet.
Remove Candy Bouqet from the web.
Write to Google at email@example.com, explain that you didn't realise
you were doing anything wrong, apologise, explain that you have taken
the above actions.
Wait for a reply.
Submit both URLS to Google.
With the next Google update or the one following, everything should be
as it was, but with only your best domain operating.
If any of the above is unclear, or you have further questions on this
topic, just ask for a clarification and I'll get back to you.