Advice? People think I am angry when I am not

I'm not sure if anyone else has also had this experience but I often get misunderstood by people around me and I think it might be cause of my personality (infj)

I have often been told that my tone of speech is quite monotonous and I try to work on being more expressive. So, there will be times I point something out and whoever I talk to automatically thinks I am angry? I don't say that I am annoyed but they assume so anyway.

For example, I realized my family member drank from a cup I drank half a cup from already and told her "XX, you drank from my cup" and she immediately apologises "Sorry, I didn't know, I usually drink from this cup" and I responded "but I drank alot from the cup already" and she thought I was angry at her and tells me that she won't drink from that cup again when I was just pointing out that she should have known that it was someones cup cause someone already drank from it, not 'it's now my cup so how dare you drink from it!! ' another example would be when my family member ate a type of bread I liked and I said "oh, you ate the XX bread?" she immediately apologised and I really don't get why she did that when I never said that she wronged me or whatever, it was just bread. At a later time, she then mentions that she doesn't dare to eat that type of bread cause I think I am entitled to it and would get angry at her for eating it.

And for projects I do, my teammates are not always on the same page as me and while I have a higher position, I mostly have the same access to information needed for our work as them. Sometimes, they will ask me for information already available to them so I will just tell them to find it at the place I found it at in a one liner. I am quite a dry texter and I usually respond in one liners since I am quite straight to the point. I thought they would know that that was just my style of texting but they also thought I was annoyed/angry at them when I was merely pointing out where they could find the information.

I really don't understand how the way I am communicating makes me seem so angry when I don't even feel bothered by the thing at hand. I have thought about my choice of words and I don't really think it can get better than this, since I am straight forward and just mean what I say.

Have other infjs experienced this before? I hope I would be able to seek advice from those which have a similar personality to me here :)