I have a coworker who is like late 40s to early 50s old who gets offended by everything. I am not the only person he does it to e.g there was another coworker in his 20s that the 40 year old coworker offered to hug, and the guy said 'no' and coworker was like 'aw, is it because i am gay?' Where the guy had to explain to him its because he doesn't like hugs- yet i don't think you should have to explain to your 40+ year old coworker why you don't want a hug from them.
Same guy has done things to me like offer me stuff I don't want e.g home baked cake, charging cords then gets offended when I don't want them, when I didn't want his questionable cake he started muttering under his breath. My dad thinks I should just take a slice of cake when offered next time to keep the peace and I am tempted to take it, then directly throw it in the bin with the coworker watching. On Friday the coworker shoved a box of tissues into my face where I waved my hand side-to-side and shook my head in a 'No' motion as i had my headset on and I was in a call. He immediately started complaining that 'you don't need to be rude about it *just* so you know' I ignored him. Because he wasn't getting the attention he wanted he directly started talking to me to tell me how he feels and he thinks I was shooing him away, I said 'it means NO' and I didn't elaborate or explain further.
Often it feels as if he expects you to explain yourself to him as to why you don't want what he offers to make him feel better, about the perceived rejection. I am a believer if you offer someone something and they don't want it, its perfectly fine for them to say no. Though this guy constantly wants reassurance and attention, or he will start being passive aggressive. Another factor is he walks behind our screens to check our clients, looks them up then criticises our notes, polices our time, nags you, and tries to monitor the workflow- he is not in management he has only worked here 3 weeks earlier than me. If you ignore him or tell him no, he starts getting bitchy. I've muted him on teams and don't acknowledge him besides saying good morning and good afternoon or hello/goodbye. which is upsetting him further. Like he saw me sitting alone before work then approached me to start talking to me about work, I said okay then took a selfie then he started complaining about me taking selfies. He also got upset because I talk to another coworker from work on social media.
Its hard to type out yet its not screaming and yelling but a passive aggressive type of behaviour, where he can just switch up suddenly. He often starts it more when the manager leaves.