Patrick can't win no matter what he does. He's already hesitated when Robin asked him what he was going to do. She won't forget that. He's not going to continue with Sabrina (all other things being equal) with the implied peer pressure of the entire town celebrating Robin's return. And he does love Robin. No win. Unless Sabrina chooses to leave town, she's going to be there at the hospital every day, pining away. Catching her in a kiss with Carlos with his clothes on and her dress over her arm might make his decision easier. Doing right by Emma will also play a role in his decision. Interesting dilemma. When he asked Robin to come home with him, all I could think of was that Sabrina's been living there and her stuff would be all over the bedroom, bathroom, etc. She made the right decision, although it broke my heart for Patrick when she did.