A disagreement between two individuals should be initially communicated between those two and ideally resolved privately. Hopefully both sides have enough empathy to understand the other's perspective to reach an amicable conclusion.
Airing out on Twitter as a first response (not sure if that's what happened here) is a sign of immaturity and not what someone does if their goal is to fix the original concern. By airing it out on Twitter, you put the other person on the defensive and they're less inclined to actually help you to resolve the original complaint.
Airing it out on Twitter is an escalation, and a decent outlet for escalating issues that are systematic and/or can't be resolved through other communication channels.
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