Almost from the beginning, Tuesday is very unlikable. She calls herself snarky, but that's not the word for it. She is also struggling with turning to alcohol to solve her problems. At one point when she isn't getting what she wants from Diesel, she threatens to go start drinking. He backs down. Another time she wakes up with a hangover, having passed out the night before. They are, unbelievably, ready for some morning action anyway. When Tuesday wants to get up and brush her rank smelling teeth, Diesel tells her no. He doesn't want her tasting like mint, but her regular self. Yuck! She's also a totally rude talking person - "I feel look/feel like ass" type of conversation.
There is lots of sex, which would be ok, but McCarthy doesn't give us anything else to feel good about this relationship. Also, why does everyone feel it's ok to talk to them about their sex lives, including the little old lady sitting next to them at a party? After a month of this unhealthy stuff, they are in love. Wish we could know the nicer people that would have made this a good romance.
Last, has McCarthy ever heard of safe sex? It seems everyone is going without protection to fulfill her plot lines. "I'm clean" isn't true just because they think it's so. One woman has unprotected sex with two guys in a couple of days, ending up pregnant by which one? Of course, one of those guys turns around to marry another woman pretty quickly. He then is devastated when the other woman finds the baby isn't his. Yuck again.
The ending is taken care of quickly in a matter of pages, without us seeing the person Tuesday "would like to be". If you really have to read it, then try the library.