Dude I totally agree with you @liann , it's something that keeps me from getting into the romance genre on comics (I don't read em, personally), although some of my favorite novels are romance. And slow romance, at that. I love Jane Austen, but she knew how to build relationships around the romance so that it still felt like something was happening even when no one was touching. Even when no one says I love you until the end of the book, how freakin good is Jane Austen guys?
I think, personally, romance is extremely difficult to write, and the success of if it works in a comic is an indicator of the maturity and talent of the artist/writer. Either they have a lot of talent but aren't...old enough to have had a whole lot of actual relationships to know how they work (which is an issue with like all fic online, you can tell when you're reading a romance written by a very sweet high schooler who is just copying what they see and that's how you get relationships that take way too long or go way to fast) or they know a lot of life experience about romance but can't quite figure out how to maturely and respectfully relate it through a visual but also writing medium. It's just so damn hard to do it right.