[Knowing he could forgive Spike and not Tyki is part of the problem for him. He doesn't like feeling like a hypocrite even if he knows that, for him, the two experiences could never compare.]
I'm glad you didn't stay with him. It's so hard not to see the similarities between what we did to both of you. The fact that you aren't sitting out in a Sector waiting for it to disappear is the only shred of good I can see in any of this.