"C'est Venus toute entiere a sa proie attachee" as M. Racine so feelingly observed.
Rachel isn't a happy rabbit. either. No, not because of Tosh's attentions- though she doesn't welcome them, but because she's spent most of her life cooped up in a tiny hutch and her idea of fun is to back herself into a corner , sink her head between her shoulders and hope that the world has forgotten her. Ailz thinks she's depressed; she probably is.
Things will improve. Tosh will get used to having a woman in his life and Rachel will get used to living in a world thats a little larger than 2'X4'. In the long run (I trust) they'll be good for one another.