Their heart and mind are still stuck there, although they may deny it, and they can not handle being in a relationship. This can show up as jealousy in someone who has been cheated on in the past. In others there may be the comparison game such as: My ex did that too and it drove me mad.
Note: One of the largest ever recorded humpback whales measured in at 89 ft. long. These marine mammals are generally either a dark grey or black color with white patches on their stomach and knobs (known as tubercles) covering their head.
Blue whales are mammals and not fish. The largest animal that ever lived is the blue whale. The blue whale can weigh 200 tons and measures almost 100 feet. But some other extinct animals were longer, if not heavier than blue whales, most being dinosaurs. Among those of the largest extinct animals are the great sauropod dinosaurs.