Owen Coyle felt it was a frustrating night for Rovers even though they pushed promotion-chasers Brighton all the way at Ewood Park.
A first half header from former Rover Shane Duffy was added to by a fine strike from Dale Stephens as the visitors raced into a two-goal advantage.
But after Sam Gallagher had deservedly pulled a goal back for Rovers, the home side found themselves down to ten men as former Seagull Gordon Greer received his marching orders after picking up two bookings.
Glenn Murray soon made it 3-1 but although Gallagher scored a great second goal on the night, it was too little too late for Rovers.
"There is no doubt there's a sense of frustration tonight," Coyle told Radio Rovers.
"We knew it was always going to be a difficult game but we started the game really well, were on the front foot.
"But then I felt a little bit aggrieved to go behind against the run of play from a corner that was avoidable. But then Gordon has allowed the run on him from Shane Duffy and it has found it's way into the top corner.
"After that we've had one or two very good chances in the first half, their keeper has made an unbelievable save from Danny Graham and there were a few other skirmishes on the line.
"We came out in the second half and I felt it was quite even as we tried to get back into the game but they score the second goal from the set-play with the boy scoring a wonderful volley.
"So that left us with an awful lot to do at 2-0 and it would be easy for us to crumble and feel sorry for ourselves. But whilst weren't fluent, we picked ourselves up and managed to find a way back into through young Sam Gallagher and were well set to go on and get something from the game.
"But Gordon Greer won't need me to tell him that he's made a very foolish decision in rushing in when he's on a yellow card, so we find ourselves down to ten men against a team that is difficult enough when it is 11v11.
"We then concede a third that is avoidable, but the spirit we showed with ten men to keep going merited a second wonderful goal from Sam Gallagher. It is just a shame that it was too little, too late.
"We've shown that we've opened up the team with the best defensive record in the country, what we have to do is to stop conceding the goals that we are."
Rovers are back in action this Saturday when Reading are the visitors to Ewood Park.
Supporters can see the match against the Royals at the pre-Christmas price of just £10 for Adults, £5 for Seniors aged 65 and over, £5 for 18-21 year-olds and a fantastic £2 for those fans aged 17 and under.
Book online today at www.eticketing.co.uk/onerovers, buy in store at the Roverstore, Ewood Park, or over the phone on 01254 372000.