Yes this book has instances of DV, but at its heart, it’s a candy coated, repetitive, and fairytale romance. It’s a quick, easy read. Hardly any angst between the two MCs. 
The characters “rasp” thier lines so often I don’t know how thier throats still function. 
I guess some others found it dark, but there’s too much hope, happiness, and hardly any conflict beyond the MC and the abuser who pops in and out and convienent times to move the plot along. 
I enjoyed it for what it is.