Monday night's 1-0 defeat to Swansea City last night mean that the Hornets are now on a run of four successive defeats.
Flores claims that his side didn't deserve to lose the game at the Liberty Stadium which was won by a 27th-minute header from Swans skipper Ashley Williams.
"I think football has been cruel with us in the last few matches," he told Sky Sports.
"We didn't deserve to lose today, but that's football, everything can happen, so you need to accept the result and improve for the next match.
"I'm disappointed with the result and first half we lost balance in a few areas, we suffered a bit without the ball and they had control.
"I was happy with the performance in the second half, we had high pressure, we created chances and the team came back with a performance. In the second half it was completely different."