One year ago during an online meeting, a coworker from another team compromised with our client on a set date for a solution. The deadline is reached a week later, and no updates are available on the progress.
I engage my colleague with an initial friendly tone via Teams, full of my characteristic smiley emojis. My messages are seen, however ignored.
Several hours later, I notice that my colleague is joining a non-priority, non-mandatory meeting. I send a new message, stating that I am aware of his presence on the meeting. I beg for any feedback, as by now my inbox has 2 frustrated emails from our client. My words are conveying desperation, as I only intend to obtain any significant status update.
My colleague replies that his agenda is none of my business, then proceeds to report my "invasive" approach to my manager.
Our client got understandably upset, as we missed the deadline. We later lost the contract that month.
I still do not go along with this coworker, as earlier this month we have had another disagreement, which, I am afraid, has only worsened the relationship, maybe up to an unsalvageable state.
This article does not seem to have suitable advice for my scenario, as I have no interest in working with unresponsive and irresponsible individuals. I do wish the article could provide more insights on how to deal with lack of ownership as well.