How dose M&M father Treat him? What is Cathy's opinion on his treatment? In that was then this is now?

M&M's father treats him with intolerance and violence. That's because he doesn't like the way M&M looks and doesn't agree with his behavior. Cathy feels very bad about this and is uncomfortable and frustrated with the way M&M is treated.

Explanation:

"That Was Then, This Is Now" is a novel about a group of friends who end up establishing themselves as a family to each other. One of these friends is M&M who is a very lively and intelligent boy, but mistreated and misunderstood in his home. although smart, M&M doesn't do well in school, his grades are low and he takes on a hipster look that dislikes his father deeply. M&M's father cannot see the potential that M&M has and that is why he treats him with violence, intolerance, aggressiveness and threats. Cathy, who is M&M's older sister, is very annoyed by the way her brother is treated and feels frustrated that she can't do anything.