Both teams advance to next week's 15th Region Tournament, but Conley said the Rebels should have walked out of Thursday's home game as the champions.
"Not to take anything away from Marion County, because it was a very competitive game, but we outplayed them," Conley said. "That trophy should be ours and I just told them we're just going to have to let it eat at us until next week. We're not finished. We've got unfinished business."
Neither team was able to finish anything in regulation, as the game remained scoreless through 80 minutes. But shortly after the first 10-minute overtime period began, things got exciting.
Patrick Morgan unleashed a shot for Boyle that sailed right at Marion keeper James Clements just 49 seconds into the extra period.
With 8:28 to play in the first overtime, Marion fired a shot at the Boyle goal. Rebels keeper Evan Rice came out for the ball in a mob of players, but the ball went past. Keita Fukuzawa and Boyle's Blake Sheaks were alone in front of the goal with the ball, and the two battled for it. The ball rolled slowly into the Boyle goal for a 1-0 Knights lead.
"We made a silly mistake and they were there to capitalize on it," Conley said. "We had 20-some other opportunities to score goals. I don't think Evan touched the ball three times in the entire second half and in overtime, maybe twice. It just irritates me horribly."
Boyle's best chance to tie the game came with 8:20 to play in the second 10-minute overtime period. John Frauenhoffer sent a shot in from the left side that went off Clements and fell in front of the Marion goal. However, defender Andrew Spalding was able to clear it out and end the threat.
Boyle beat Marion 2-0 earlier this season, but played the Knights twice in the postseason last year. Each game finished as a one-goal loss by Boyle, once in the district championship game and once in the regional title game.
Conley said this year, his team is confident it will have a chance at revenge. And this time, he hopes things will balance out.
"I don't have any complaints aside from the fact that we just didn't finish," Conley said. "We played like a team tonight. We strung eight, nine passes together and they were composed.
"This effort will win 99.9 percent of the nights. It just wasn't in the cards tonight. Maybe that's because we've got bigger things to fry next week. Congratulations to Marion County and coach (Greg) Fischer, but we're going to see them again."
Boyle County - Nick Farmwald, Max Gideon, Evan Rice. Campbellsville - Steven Sebeich. Danville - Adam Hoover, Miguel Magana. Marion County - Keita Fukuzawa, Andrew Spalding, Luis Cruz. Taylor County - Adam Reynolds, Joe Holenbach.
MVP - Dustin Mattingly, Marion County.