@Liquidsword - Well, I just thought of this as a chill kind of manga, so it just seemed weird to me she would start posting semi-nude pics just for him to get jealous. I totally forgot DM's exist because I don't use social media. Him saying she shouldn't show too much skin to people kinda reinforced that though ( at least that's what she thought he would say).
After reading it through again, it makes more sense she was just trying to mess with him. So my comment was me more or less misunderstanding of what was going on.