Ahhhhh! One of my worst nightmares could be coming true. A three-named celeb might actually be marrying another three-named celeb.

According to the NY Daily News, Weeds co-stars Jeffrey Dean Morgan and Mary-Louise Parker have taken their on-again-off-again relationship to the next level and are engaged. The paper says the duo are telling everyone about their plans to tie the knot -- which is wonderful for them. For me? Not so much. So many names! And imagine if Mary-Louise decides to screw with people and hyphenates?

Mary-Louise Parker-Morgan. Jeez.

As for the coupling, Jeff and Mary (as I like to call them) are SO cute together, and Mary deserves to have a love with a good guy, after that crummy Billy Crudup dumped her for Claire Danes, while she was seven months pregnant with their son.

Congrats!