I admit I was uncomfortable with how she nonchalantly said she had a boyfriend and that fact got swept under the rug, with the protagonist not even mentioning it until page 20. She flirts with him every day despite that fact, taking advantage of his inability to set any boundaries.
"Of course not, I wouldn't do such a thing"
He wasn't wrong though, at that point as far as he knew she had a boyfriend. Holding back on her was the right thing to do.
Her trying to get back at her cheating boyfriend by flirting with another guy is just using a wrong to fight another wrong, and that rubs me the wrong way. Just dump his ass, attempting to cheat on a cheater isn't always going to work. And it didn't work in this case, she ended up breaking up with her cheater boyfriend anyway.
While it's good she found a new love right away, I honestly wished she was just lying about having a boyfriend, so this left a bad taste in my mouth. Sorry, I don't want to experience a romance like that. Based on the last page, maybe I'll just pretend the entire thing was staged.