Was it just me, or was that a rather troubled / ambiguous look Ty gave Tina at the end though? Intriguing...
Not just you! We've had two episodes in which people have told Tina that, essentially, he just wasn't as in to her and was never going to be. And while I know a desire to hold an adorable baby does not equal wanting to have one, she did seem happy and comfortable holding the baby. And Ty seeing her as a mom (and she'd likely would have to start thinking of starting a family soon) made him contemplate they may not be envisioning the same future and will have to have a serious discussion at some point.