I sympathize with this view as well. Romances in anime/manga are especially frustrating to me because all the characters tend to act in very childish ways and not act their age. If you are in high school, it shouldn't be heart-attack inducing to have a member of the opposite sex talk to you or share a textbook or whatever. The extra frustrating part is that these childish behaviors are not just limited to teens, but fully grown adults tend to act the exact same way in a lot of anime/manga; just swap high school for an office or izakaya. I can deal with it easier if the show leans more on the comedy side of a romcom, but the more straight romances tend to be tough to bear (with a couple exceptions).