Guy Ritchie got in Rocco's ear and drove a wedge between Madonna and the 15-year-old ... sources close to Madonna tell TMZ.<br />We're told Guy and Madonna have had a "volatile" relationship for years, and Rocco has been a source of conflict.<br />Madonna, we're told, is a strict disciplinarian and "very controlling" ... something that doesn't sit well with Rocco and for that matter most 15 year olds.<br />Our Madonna sources say Guy was angry at Madonna and used his visit with Rocco to stoke the coals, and it worked.<br />We're told Madonna isn't worried ... she's confident Rocco's coming back home for good, and this is just part of the co-parenting hand she's been dealt.