Roommate says my 'door gym' and my 180 lbs has caused the house foundation to crack and shift....is he right?

I live in Florida in a 40 year old house. 2 days ago, an area of tile began to upwell just inside the doorway of my office... then yesterday morning within a 2 hour time span, a 4' x 4' area of floor suddenly shot upwards and broke the tile....like nearly 6 inches! It even knocked the door off it's hinges... I've never seen anything like it... a few hours later the sound of cracking and shifting moved into the next room and the tile began to crack there also (but without the violent upwellling). I suspected that a corner of the house foundation had cracked and was tilting down towards the other room... I went outside and found a plastic drainage pipe had been broken off and was steadily dripping water on the corner of the house's foundation that things appeared to be sliding/sinking towards. We've been running the AC steadily for the past few months so the drip has been constant...plus we've had weeks of daily rainfall... my roommate says that the combined effected of daily pull ups from the door-gym caused this. His last roommate weighed 220lbs and also did pullups in the door... i think my roommate is CRAZY. What do you think