Gary Edgley was upset to see his side slip to a late defeat after twice leading.
He said the Poachers had dominated in the second half, but gifted three goals to the visitors.
Fraser Bayliss had put the hosts 1-0 up early on, only for Nirvana to peg it back almost straight away. the same thing happened when Richard Ford made it 2-1.
And just as it looked as if it would end up a 2-2 draw, the away side snatched a cruel winner.
Boston Town FC 