The Story of the Flood

So, our trainer came up with this rather interesting topic for a group discussion which she felt would help the class figure out the advantages, disadvantages and the necessity for this medium of instruction. So, she told us about these two lovers who lived on opposite sides of a river (!). They would meet on the bridge that would connect the two rivers. Then came this huge flood that swept the bridge away. Then, the lovers had no choice but to use unconventional methods (!!) like placards (from across the flooding river) to communicate (!!!) and express their love. So, one fine day the guy does not turn up to wave his placard and the girl is crushed. This continues for about a week and thats when the girl starts getting panicky and decides that it is time to cross the river. She approaches this fisherman and asks him to take her across (in a flood). The fisherman on his part has a habit of being a lazy layabout who likes passing lewd comments and teasing the girl. He tells her that he can take her across the river only if she comes alone and at night. She eventually agrees and gets across the river without any more excitement in her life (thank god!!). She walks up to her lovers place and pushes the door open. At this point in time, the trainer mentions that the dwelling is a hut that has seen the worst of the flood. Anyway, so she pushes it open and confronts the guy who is on the bed (presumably floating around the room) with his leg in a cast. When he sees her, he apparently questions her and finding his authority and his pride challenged, addresses her in an aggravated tone and asks her to go back. "Now comes the fun part," says the trainer and proceeds to ask us whose fault was it?

My conclusions:

1. None of the three characters can be blamed for the flood.
2. It is not possible to wave placards from across a flooding river as physics dictates that the river swells up in the middle preventing the parties from being able to see eachother.
3. On the same lines as the point above, waving placards from across a river would still be useless, unless the placards were at least a 100 ft in length and presumably wider too (esp if they intend to say anything more than a 'hi')
4. The fisherman can't be blamed as it is possible that he works in the day and has no time to waste on a girl who obviously is not an economically beneficial obligation.
5. How is any of this the 'fun part'?

Am I missing something?