antifreeze SOAKED spark plug!!!!?? WTF!

ok guys i pulled the back drivers spark plug wire off my pi headswapped 98 Gt and the wire boot was dripping with antifreeze so i pulled out the plug and it was SOAKED in antifreeze i mean from top to bottom it was covered in it....what could this be? Head gasket? hopefully but ikinda think i know what it is..
 
It was soaked on the top of the plug, correct?
Then you have a collant leak that is running down your intake manifold and ending up in the plug hole. I accidentally spilled a bit of oil once and guess where it ended up? Yep.

Check around your thermostat for a leak. I'd suspect a lot of other things before the head gasket. (If the coolant is on the wire side of the plug.)