Who did brain see in the car with a man From the Hatchet Book

In a semi-dream state, Brian vividly recalls every detail of the incident in which he discovers "The Secret." He had been riding his bike with his friend Terry when he saw his mother in a strange car, kissing a man with short blond hair. The hatred, anger, and astonishment that had swept over him at that moment return to him anew. Becoming conscious once again, Brian slowly absorbs the surrounding wilderness as the details of the plane crash rush back into his mind. His entire body aching from the injuries he has sustained during the crash, he falls quickly asleep. Awakening in a haze, Brian finds his survival of the plane crash almost unbelievable and quickly remembers the pilot's less fortunate fate. The mosquitoes in the area swarm around him and leave him with painful bites on every part of his exposed skin. Brian feels lucky to have survived the crash, and upon looking at the surrounding area, realizes how close a call it had been; he had just barely avoided a huge rock nearby. Contemplating the scenery and listening to the many sounds of nature surrounding him, he falls asleep once again

Explanation:

she is outspoken and direct