Was Amy molested?

Have you read Eliz Strout's Amy and Isabelle, and, if so, do you have any doubt at all that Mr. Robertson, the teacher who has a sexual relationship with Amy, is a predator and child molester? An abusive, character-disordered man who should, at the least, have his certification revoked and, more aptly, should face criminal charges? When introduced in the book, the new substitute math teacher, he asks totally inappropriate personal questions of the students in his class, then makes bizarre sexual comments to some, e.g., you have beautiful hair. He zeros in on Amy - obviously a troubled, vulnerable girl with a poor self-image and, as he learns later, with no father and a weak, socially outcast mother. A perfect target for a predator. He seduces her with nonsense talk about poetry (not his subject), keeps her, alone, after school, starts driving her home, then necking with her in his car, ultimately taking her to the woods where he seems to basically "dry hump" her, finally gets her in his car and strips her, fingers her, and is caught in the act and chased out of town - not before making horribly nasty remarks to her mother. He seems to be an itinerant (maybe had similar issues in other schools), possibly makes obscene phone calls. After leaving town, he cruelly rebuffs any effort by Amy to reach out to him. Is Amy in any way in the world better for this relationship? I believe she is damaged by it, that she has been treated as an object and will believe, without future therapeutic help, that the way to get and keep a man is to be a slut, that all men, in her friend Stacy's words, are "rat fucks," that there's something wrong with her, that she's a bad person, I could go on. And yet: several people, maybe most of the people, in my really smart book group, think that this was a loving relationship, that Amy comes out of it with a better self-image, that she'll be fine now that she knows she's attracted to (and attractive to) older men, that Mr. Robertson really did nothing wrong other than violate some teacher/student boundaries, that if Amy had been a little older (she's 15 or 16) all would have been okay, etc. Am I losing my mind here? Were people having me on? Were some of my friends arguing for the sake of doing so? Did we read 2 different books?