Fake Engagement Romance Book

I read this book in 2020 but I can't seem to find it anywhere anymore.The plot is basically about the fmc being a social media manager (specifically Twitter) for the MMC's personal account and the account of another client. The other client informs her that he just got engaged and instead of posting on his Twitter page, she accidentally posts it from the MMC's page instead and it instantly goes viral.Mmc then finds her and basically forces her to become his fake fiancée. I remember the book was the first of a book series based on the MMC's friend group.Both the MMC and FMC have strained relationships with their parents and the FMC had a stutter. Please let me know if you know what book I'm talking about.