

Look, communicating awkwardly doesn’t make you a horrible person. I think part of it is you have a confidence problem. It sounds like you always cowtow to your coworkers’ reactions, even going so far as apologizing when you haven’t objectively done anything wrong (your responses don’t seem that weird, but maybe it is the way you say things). It seems odd to me that anyone would be offended by an offer to go home early, unless you’re making it seem like you specifically don’t want them to be around.
At the end of the day, your coworkers are just people with their own issues and imperfections. They are probably not experts at communication either, so don’t treat them as such. I would not take any social cues from coworker 1.
You may not be able to change the dynamic at work, so my advice is to find a way to socialize outside of work (with people who actually like & respect you!). That way you won’t have to rely on your workplace for those needs.
I think at this point MS Word automatically recommends a hyphen after any number + quantifier combo. One time it wanted me to correct “three armed guards” to “three-armed guards” which would have changed the meaning considerably.
The number of times MS autocorrect suggests incorrect changes to grammar is laughably high, and most people just blindly follow the suggestions.