In the world of BSG, there are divisions everywhere.
On the Demetrius, there are divisions between Starbuck and essentially the rest of the crew. While Starbuck is seemingly flying blindly into the night trying to find a sign of where Earth is, the rest of the crew gets more and more restless. Helo stands by her until the end after one of their crew dies on a captured Cylon ship manned by an injured Leoben.
Leoben tells Anders, whom he doesn't know is a cylon himself, that there are divisions amongst the Cylons. A civil war has erupted. Leoben asks for an alliance, the crew is reticent to comply. Humans aligning with the Cylons?? They haven't done that since… oh wait Sharon is a Cylon so…. Hmmm. This issue will definitely divide the people for sure.
Tyrol is really the one of the New Cylons that has not taken this life changing moment clarity well. He goes off the deep end mentally, his wife gets killed (by Tory… of course he doesn't know that)… and he's on the verge of suicide. But something stops him. The memories. Real or not, they comfort him. And the most unlikely person to comfort him at the end was Baltar.
'Til next week.