I feel like this book has either been marketed completely incorrectly or is one hell of a bait and switch. This is not girly finds out her one night stand is her teacher and tension ensues. This is very much not a romance at all. There are sex scenes yes, a third act breakup (which honestly made complete sense to me and was valid and emotionally mature for once!!! Dude had a fucking point! They should not have back-pedaled!) and a happily ever after, but it's not a romance. 
Ely left her Orthodox community after battling substance abuse, eventually she gets clean and finds Wyatt, another recovering addict who is never fully fleshed out and exists purely to prop up the main character. He doesn't even get his own POV at his abusive dad's funeral. They have what she keeps describing as mind-blowing amazing best sex of her life sex, but is actually just standard sex but the bar for men is underground when it comes to female pleasure, and then he does what is absolutely the right thing and says yo we can't see each other anymore because you're my student. Like a decent fucking person! Then we get 300 pages of him being told that's wrong and them having the messiest, most codependent, sobriety-shaking situationship that turns to "love", but it's not really love and they're not really going to last let's be real. I don't know... like I said it's not a romance. This is about a woman who absolutely destroyed her life trying to rebuild it one brick at a time, not very well and with the emotional maturity of a sea cucumber, but still trying. 
The author tries to tackle so many different things, and absolutely fails at all of them because at every moment where there could be character growth, plot, literally any type of resolution or closure or anything she just drops it in favor of the romance that this is not. It is infuriating. 
A huge part is the question of What does it even mean to be a Jew anymore? Is it temple, genetics, upbringing? What?? These are all valid questions, all asked but none of which ever got answered in the story at all because it was mentioned and then immediately forgotten so that we could have more drama with their will they won't they crap. 
But overall I really felt for these characters even to the point where I was like "no no no no no don't do that no no no no no no no no no no" at some of their decisions. So I was invested... and I love to see stories with Jewish characters who are not being hunted and murdered and trans characters who are not also being hunted and murdered.