lisa morgan , 40 , amended site to claim her boyfriend had been unfaithful .
top of the world roofing website says it 's ` ceased trading at present '
site now claims boss was ` unfortunately found out to be cheating again '
met sean meade , 45 , in august but soon grew wary when he was never in .
contacted his estranged wife , jo , who told her he had cheated on her too .