An Infatucoma is defined as the period of time during which a guy ditches his friends in favor of his new girlfriend. This is often accompanied by total telephonic unreachability.
With luck, he will emerge from the Infatucoma and return to his friends to realise the error of his ways. The unlucky are never seen again.
Dude 1 - "Hey, I can't get hold of XXXX on the phone and I've not seen him in a lifetime - what's going on?"
Dude 2 - "Yeah, I heard he's been in an Infatucoma since last September!"