Dave Grohl’s ex-girlfriend Jennifer Finch is reportedly standing by the Foo Fighters rocker amid his lovechild scandal. The former Nirvana drummer, 55, has dramatically admitted he fathered a child outside his marriage to his longtime wife Jordyn Blum, 48, and amid a furious backlash from his fans over his cheating Jennifer is said to be backing him as a decent man. Jennifer, who was part of the punk rock band L7, reportedly told TMZ Dave was “doing everything he can for his family” and “giving it his all in spite of the messy situation”. The outlet added: “As for her connection to Dave, Jenni…