Conservative MP Mike Freer has told Daybreak his party "can't win" amid the row over gay marriage.
"We get criticised if we don't debate as being spineless lobby fodder and when we do debate we're accused of being divided and fighting," he said.
Mr Freer, who is gay, said today's Commons debate is a "good thing" in the bill's passage despite the division in his party's ranks.
In an article for ITV News, Conservative councillor Mary Douglas talks gay marriage and urges David Cameron to return to 'core values'.
David Cameron has defended the equal marriage bill while Nick Clegg claims a civil partnership amendment is laced with an "ulterior motive".