Jason had an alien inside his body named Carnage he kept it control though. Jason had gotten you as his lover he didn't tell you about Carnage.

Til one day you we're bathing yourself and Carnage took control of Jason and was searching for flesh to fed off and slammed the bathroom door open leaving you stunned and looked at it.

After a min of fight you were underneath it as Carnage was smacked by Jason taking control of it, since they were one being in one body too. Jason stated "Sorry."