This is where Liz has things slightly better than Mike; she, after all, has Miss Edwards to give her some sort of real-world perspective to help her when the pressures of dealing with her imbecile friends become too much. Liz kinda needed the help because she doesn't really have the skill set required to compete in the artificial environment known as high school. She's timid, not very smart, passive, clingy, immature and sort of a gloomy person at the best of times so expecting her to understand social situations is a crap-shoot at best. Most of why she was depressed for so long is that she simply didn't have the ability to see why it was 'friendships' were so volatile. I mean, you take someone who never grew out of zero-sum thinking and put her in a social situation and you will end up with a Liz Patterson convinced that she doesn't fit in. Add in a sullen dick older brother, a mother who's forgotten what it's like to be fifteen and confused, a father who's basically a robot with skin on and a kid sister that everyone fusses over and you end up wanting to backhand Dawn, Candace and Shawna-Marie for not being more sensitive.
As irritating as Mike's gutless friends and Liz's catty, whiny idiot friends are, at least they didn't spend their time going "Blah-blah-blah-war-zone-blah-blah-blah-e
Ah, well. Odds are that when April leaves for the minor frontier village of Calgary, she probably won't keep in touch with the dozy prat. That makes her better off than her older siblings.