I think the key here is how you respond to her behaviour! You have said I (ubderstandably) upsets you but how does that manifest itself in front of her? If she is rude / sharp / moody? It sounds like she has to take no responsibility for her behaviour! I don't mean that you have to enter into big arguments though! A few suggestions all said calmly and with no drama......" Good heavens, did you mean to sound s rude as you did then?"; " Oh well I'm happy with it ....so no worries!" ; "You seem angry/upset/ uptight today. Can I help?" ...depending on response followed by "Oh well, I offered!" or " Ok, let me know if you change your mind"; "I seem to be annoying you but I have no idea why, so best if I go. See you soon"; "I seem to be annoying you, would you prefer me to leave as soon as I have finished my lunch?" If the answer is yes ..." That's a shame, but probably best as don't enjoy having to put up with ..."; " what is the matter? " ...the depending in answer, followed by"why do you think that?" ; "what did I do that made you think that?; " why would that make you think that?"; "why didn't you say?" ; "I abt read minds but now I know I will make sure I..." (if it is a reasonable comment Ofcourse! I cant put all examples as your calm response that is adult and putting onus I her has to depend on the specific behaviur/scenario. If you would like to share more specific scenarios to me in a private message, I am happy to suggest possible responses 
Govt announces Ukrainian style scheme to bring thousands more migrants to UK
Do you get emotionally attached to the plants in your garden ?



