what we lose in the fire we gained in the flood

 Effective immediately, I am playing with the assumption that Laura Barton was Agent 19 and Bobbi's mentor in SHIELD, then passed the Agent 19 mantle onto Bobbi when she retired. They don't talk much anymore, because life gets in the way, but they're on good terms. 

Unless otherwise specified, I will also be assuming that MCU Clint was mentoresque with her (instead of their comics history).