Board Thread:Character Discussion/@comment-187.172.138.83-20130506222109/@comment-8954026-20130507063212

I thought he explained that in this episode - he couldn't forgive himself and therefore didn't think Emma would forgive him either! As for Tamara, we know she orchestrated the encounter and would have been pretty full on getting them together as this was her mission. I suppose after 10yrs of being alone and pining for Emma he was lonely and decided to give in and get some sort of happiness with Tamra, even though she wasn't who he really wanted to be with.

That's how I see it anyway.