I really hope this isn't supposed to be a great love story
Seems more like a story about the power of having one's own identity and place in the world. That's what seemed to draw her back to New York, after all, not some epic love for Tony.
But some people are touting it as a great love story. Huh? That barely after marrying Tony, she can't bare to read his letters and is spending all this time with another guy, and only goes back to him when she gets annoyed that the village bully calls her out on her two-timing?
If her choice at the end was supposed to be a touching demonstration of Eilis's enduring love for Tony in spite of all the temptation back in Ireland, it didn't pull it off very well. As the viewer, I felt like she actually was developing more genuine feelings for Jim, but the temptation to go off on her own and stick it to Ms. Kelly and all that she represents about her native village was too great and blinded her (not to mention that she'd already tied the knot with Tony).