first off, relax
Second of all, remind me of a point in time in which Issa was actually there for Molly? Since the beginning of the show Issa's been trash towards her. I literally can't remember a single time Issa's actually been there for Molly whereas Molly's always showing up for Issa.
Off the top, here are the ways in which Molly's been a way better friend or Issa's let her down since jump
1. Broken p*ssy
2. Issa texting her new jumpoff in the whip after broken p*ssy
3. Molly helping Issa get broken p*ssy taken down w/ Jared's help to protect Issa's career
4. Molly running interference on Daniel at Issa's fund raiser
5. Molly trying to have a heart to heart w/ Issa about the Dro shyt at the baby shower and Issa hitting her w/ the "Iono girl seems like a problem" before cutting her off to leave and take a call about her job
6. Issa ghosting Molly on Thanksgiving
7. Issa never having anything actually solid to contribute to Molly other than a line of advice here or there
8. Issa ignoring / playing off Molly's out reach early in Season 4 about her work and Andrew situation (Molly's a corporate lawyer who can barely balance her personal life as is, but makes time for Issa...goes to Coachella even though she's got a crazy weekend work-wise, rides with Issa in the Lyft prior to her date with Andrew with Issa assuming sh'e available - as soon as Issa starts getting any professional traction or responsibility, she's completely unavailable to Molly)
9. Issa only being compelled to reach out to Molly when she needs help w /the Nathan situation - quite literally the trigger for her reaching back out
10. Issa still hasn't apologized for her flaky, userish role in the friendship
I can't defend how Molly reacted at the block party, but once you look at the rap sheet .
The best she's gotten from Issa is a line of advice Are we watching the same show?
More people relate to Issa than they relate to Molly thus they excuse and see past Issa's issues because its a lot of the same issues they have. You'd think the writers went out of their way to make Molly the "bad guy" but that isn't the case at all. I think they just under estimated how many people out here are more like Issa.