Behind a picture

Sometimes, when I look at a particolar picture like this, I wonder why it has been taken or what kind of message it would communicate to us. Could the weather, in the picture, affect our opinion in order to consider it sad or happy?
About this picture I could make up a story like this...

It was a raining rainy evening (or, "it was raining one evening") when Mark, the guy who faces backwards (or "whose back is to us"), decided to go to his girlfriend's house to apologyse apologize to her about an argument that happened the day before. The matter of the discussion was about the doubt of Mark that Kate, his girfriend, (or "the topic of discussion was about whether Kate, his girlfriend,...") was still in love with her ex-boyfriend Martin because he had been told that somebody saw them together. Although she swore, crying, that she wouldn't have seen him anymore, Mark did not believe her.
Since Mark was really mad of at Kate and scared to loose lose her, he was willing to give her and their relationship a second change chance.
Despite the rain was being heavy and Mark was being completely wet (or "soaked"), he could not feel anything but his sospicious he was suspicious that, maybe, something wrong was going on...Indeed, when he had just arrived close the house, he saw a man who he thought to know knew...he it was Martin

Maybe Martin lived in the same neighboorhood? Or maybe Mark saw a man that looked like him?

Unfortunally Unfortunately my immagination does not allow me to go on, but I Iet will leave the end of the story to your fantasy...

Thank you very much for your help :)

Molto, molto bene!!!  Vorrei scrievere come questa in l'italiano!  

We use the comma "," a lot in English.  Anytime you take a breath while speaking, using a comma.