After missing out on the CAA Rookie of the Year award, Horton carried a chip on his shoulder into the CAA tournament.
Delaware trailed by as many as 15, forced overtime, but couldn't pull off the upset over Hofstra.
Delaware will face No. 1 Hofstra Monday at 6:00 p.m. in the CAA semifinals.
Delaware needs to win three straight games in Charleston to keep its season alive.
Delaware finished the regular season on a four-game losing streak.
Delaware has lost three straight games.
DeFreese is now Delaware's leading scorer with 10.9 points per game.
The victory over UNCW bumped the Blue Hens to 15-11 overall.
It wasn't pretty.
Delaware men's basketball is now 7-2 and tied for first in the CAA.