Search Results: change attitude

Coworker A and B are well liked amongst everyone and both good friends of mine. Coworker A has been at this job for 6 years. Coworker B started 4 months ago and this is her first job. Coworker A and B are both shy but they are definitely shy around each other. Coworker A was playing mind games with B’s emotions. Coworker B got sick of it (going on for 2 months) and asked Coworker A out but coworker A was caught off guard and said he was not interested. A immediately felt bad and regretted the decision. B was distancing herself from him all last week and when they did talk she joked around harshly and her whole demeanor changed. A got feelings for B and B was acting like a complete bitch and A was being nice and doing things for her. A got fed up with her shitty attitude towards him and found her twitter and she made tweets wanting to plot revenge on a coworker that nobody likes (all she was gonna do was hide her stuff around the room, really stupid childish stuff nothing major) he screenshotted and printed out her tweets and took them to HR. She was on the brink of being fired anyways because she was continuously late (she got several warnings before her write ups). Coworker A then blocked her on everything. Coworker B got fired yesterday and she found out it was A who ratted her out. Coworker A shouldn’t have gotten involved but he called it revenge. Everybody is mad at A For saying anything. Yes it was wrong but she was a good coworker who rarely caused trouble plus nobody liked that other girl. Coworker A now feels bad for what he did but the damage is done and he’s actually sad that he won’t see B again. He has tried apologizing and messaging B but she’s not responding to him. She is also blaming herself on how she handled the situation after initially being rejected (being a bitch to him all last week), I think they are both too emotionally immature and their personalities are too similar for this to work.