YA Romance. Read it within the last year. It’s about step siblings falling in love. She was very popular and he was more of the nerdy type who hung out and played games with his friends.

[Amanda]

Okay the book was about a popular girl and a “dork” boy who become step siblings when their parents fall in love. She ends up hanging out with him and his friends and eventually fall in love and sleep together. For some reason I can’t remember she ends up breaking his heart and moves away. Later on they meet as adults and get back together and solve all the issues they had. I remember he wore glasses and she had popular friends and was in the IT group while him and his friends hung out and played games and such. I just can’t remember the name. Their parents were together though and they did live together when they were hooking up as teenagers