I'll begin by justifying my rating for the technical writing skills and writing style. The sentences can be a bit difficult to follow along with at times, especially with the dialogue and when it comes to imagery. It could use some work, but it isn't too bad. It's the same with the grammar, it isn't atrocious, but there are a few words that had been misplaced that change the point of view from third to second, then back to third. As long as you watch for that, everything should be fine and it was enjoyable to read about Julia's feisty personality.
Read the story now
Next, is the plot. I liked Julia, though she seemed a bit like the average virgin in college. I do think an extra layer could have been added to her to make her stand out from the other female protagonists of books of this genre. The plot itself had a bit of a twist that I liked, which is how the playboy was supposed to have feelings. This has been done multiple times, only here, it's a main part of the story that is a bit explained to the reader, not that it's treated like a plot point, but more of a part of the character's personality. I think it was definitely incorporated into this story better than others. However, the character that it had been applied to wasn't the person I would necessarily say I could sympathize with or feel my heartstrings pulled for.
This is ties into my justification for the overall rating. I do think this story had an unbelievable amount of potential, and the way it was written did catch my attention and provided a hook, but I was completely detached from the story with the roommate's behavior. It was creepy, a bit disturbing, and was borderline harassment. The way he acted towards Julia shouldn't have been a part of his character if this is meant to be a romance/drama, it would be more fitting had this been a horror/thriller. I couldn't see myself enjoying this story when he was constantly cat-calling her and throwing himself at her trying to bed her. It was disgusting and made me feel uncomfortable as a person who has experienced this before. I wanted Julia to get away from him as quickly as possible. The only thing that could save the story is if the playboy is flirtatious without touching her or getting physical. I understand he is made to be outrageous, but this is beyond that, it is harassment and I don't want a well-rounded woman such as Julia to be falling for someone like that, just I don't wish this upon any other woman. Unlike every little thing that is now being called "problematic", this is the one factor that has always been seen as and always will be truly problematic. Even the Victorian handbooks that teach a woman of how to be etiquette refer to this sort of behavior to be something to be avoided and the handbooks for the gentleman instruct them to defend ladies for men like this. This isn't something to be played as romantic no matter the time period.
Overall, you honestly do have talent and you have show to be a person who can write a good book that can catch a reader's attention easily. Perhaps, your other works have male characters that are very different from the one in this story in a good way, but when it comes to this work, the playboy's behavior is what has ruined it. My only advice would be to keep him flirtatious and remove all uncalled for/unwanted physical contact. I do hope you don't take any of this as any sort of discouragement, I just want you to be aware of this before someone reads this and begins to start a controversy around your name. It's a terrible thing to happen to authors, especially talented ones such as yourself. If, someday, you do make changes to the story, I would be more than glad to revisit and change my review, but as of now, these are my final thoughts and I do hope you continue to write, improve, and don't take anything I had said to heart.