Part of the shows running theme has been immaturity, and also (obviously) insecurity. Many people, regardless of age and status, are just not mature enough to best handle the emotional/personal/business/financial issues that adult life increasingly throws at you. Condola acted incredibly immaturely by not answering Issa's calls, when it was about a black event for the neighborhood, that she had committed to.
Issa and Condola should have been more gracious when they saw each other, both did ok, but Condola should have apologized, and Issa should have thanked her for all her help and support. Makes everyone look better. Being petty almost never benefits anyone.
The run into someone in person who has been ghosting you (for no real reason) is always a bit awkward. Happens to me, time to time, with women, never serious, but I may send an invite text, and get no reply, and run into her, and she's like can we go out this week? Or something, but never acknowledging. It's always a question to address it or not. I have done both, always with a smile on my face, because it's never worth being mad over.