The 9th and final season started airing on September 23, 2013. A retelling of Ted Mosby's (Josh Radnor) life before he met his wife (Cristin Milioti), whom is telling his kids in the year 2030, hence the title, 'How I Met Your Mother'.The story focuses on Ted's everyday life and relationships between his four best friends, Marshall Eriksen (Jason Segel), Lily Auldren (Alyson Hannigan), Barney Stinson (Neil Patrick Harris) and Robin Scherbatsky (Cobie Smulders).Barney Stinson (Neil Patrick Harris) is known for being a womaniser, very vulgar and sometimes downright cruel (his 'plays' to get women into bed were almost insulting).
The theory goes that Ted (Josh Radnor) portrayed Barney as a womaniser and a bit of a jerk so that his kids would forgive him for chasing after Robin (Cobie Smulders) – Barney's ex-wife."Given the story structure, and with [Ted] telling the story to his kids, everything was able to be overdrawn."He adds: "There's the crazy things, like when Barney and Robin started dating, and they get tired of each other; in that episode, Barney had gained 75lb, and Robin had her hair falling out and had gaps between her teeth!So Ted's revisions of the characters are, for sure, proven."Can we go back to loving Barney now, guilt-free?But how does this tie in with Barney's characterisation?As one widely-accepted fan theory explains, Ted Mosby exaggerates his friend's behaviour to keep his kids on his side in the Robin-Barney-Ted love triangle.All he wants to do is to find a wife, so he is always misled to do many stupid things by or with his friends, especially Barney. Met with Ted in a bar named "Mc Laren" and become one of Ted's friends. A beautiful and elegant woman, but is slightly tomboyish, due to being raised as a boy by her father whom wanted a son.