Okay, "Age of Adaline" - Romantic... But Ethical Nightmare?

So, I just rewatched "The Age of Adaline" and I'm still torn! On one hand, Blake Lively is stunning, the costumes are gorgeous (major closet envy, btw), and the romance is… well, it's definitely there. But the whole movie hinges on her not aging, and that throws up some MAJOR red flags for me. Specifically, the whole Ellis/William dynamic is a bit disturbing. Does anyone else feel weirded out knowing William literally saw Adaline as a young woman, fell in love with her 'past self', and then his son is now dating her? Am I missing something here? It's like a low-key, weirdly-incestuous vibe or something. I guess the story makes it okay, from a certain point of view, but it certainly brings up some uncomfortable questions about identity and whether or not Adaline should've been more upfront with Ellis about... everything. It's definitely a great film, but I find it difficult to enjoy it fully due to it's slightly uncomfy implications. And okay, maybe I'm just overthinking this late at night, but seriously, how does she manage to keep changing identities? Did she have some kind of foolproof fake documents setup or did no one ever pull her up on it? And the whole 'running away every decade' thing has some serious practical problems. What about her friends, jobs and homes? Anyone else get the ick from this? Or am I just being overly critical of a movie that's supposed to be a romantic fantasy?