Everytime I read through these posts I'm just shocked to see how many guys are going through a similar situation to me. Sure some of the details are different, but the general situation and distractions are the same.
You need to try and focus on you, do some self examination and try and understand what makes you happy. Someone else also told me that it's important to remember that you are in this sitch due to your ACTIONS so your not going to talk your way out of it. You need to allow your actions to do the talking. At least your a good listener, my W says I'm always distracted/not listening.
I hear you on the mixed signals as well, I just need to ignore them for now and focus on being happy for myself and my daughters.