Continuation of the events ranted here: https://devrant.com/rants/9895220/...

In a turn of events and very emotional moments of human admissions, it turned out that the team leader in question is in fact suffering a lot on a personal level. Not to detail here but suffice to say that, if his story is true, is enough to make everyone have a very short fuse.

He - eventually - admitted his wrongdoings, asked/begged me to stay, promised on his life and soul to never communicate unprofessionally ever again, to take a long vacation to mourn and reflect and will consider relinquishing the position of team leader for my team and just focus on the other one he manages.

I considered this a win. I stood my ground, made very clear the terms on how I continue working in the organization, the project, and with him, and kept my client and money rolling.

That being said if it ever happens once more. I immediately resign and he will be left without any chance of recovery.