So, she refused to admit that Ninja Gaiden 2 would sell more systems than MGS4, huh? Fricking women... (Kidding.)
You could try doing what I do, and just string your life along, fueling yourself on the life essence of young harlots extracted from them genitally. It's completely shallow and largely unfulfilling, but it still makes for a good time.
That, or just rediscover the magical world of masturbation. Wait, you were in a year and a half long relationship, so you probably got reacquainted a while ago. ;)
The dedication you show to any particular console or company is inversely proportional to the number of times you have gotten laid. If you get laid enough, even if you prefer a certain brand, you just don't give enough of a shit to argue about it on the internet.