From an outsiders man willing to do or say anything anybody wants to hear to get the Presidency. I'm interested to know what his Massachusetts campaign was like though?
You just answered your question
Personally I think Romney was a socon posing like a liberal to get elected in Massachusetts and not the other way around (in order to win the Republican primaries). If there is one thing sincere about Romney it's his faith, and I find it unlikely that he ever really was pro-choice or socially liberal.