Come Undone by Gabi Moore
These characters are all a little crazy. Kat goes from being divorced for two months to seriously considering a marriage proposal from a guy on their second date. Mark apparently has issues, but their never explained. He comes across as more than just immature, he's not all there. And Anthony? He's just plain creepy. The storyline is intriguing and entertaining, the end is rather cute. I received a free copy of this book from the author.