I think, because you think your friend’s trip is bizarre, everything she does regarding the trip is bothering you differently than it would if whatever she was doing had nothing to do w/ her trip.
From what I gather from your posts & comments about your friend & her “bizarre” trip, she’s like the girl w/ crackers w/ you - anything she does relative to this trip is going to bug you.
Y’all have been friends for 50 years, & I’m sure, over a span of 50 years, you both have grown quite comfortable w/ each other & probably share a lot w/ each other which is nice & how a 50 year friendship should be.
As friends do, she came over to borrow some dresses, &, while at your house, needed to make some phone calls regarding immunizations for her upcoming trip (I assume that‘s what you mean by shots).
Would you be irritated w/ her if the calls weren’t related to the trip?
Was this the only time she could make these calls? I’m assuming she has to get her immunizations scheduled by a certain time. Have there been other times when either of you have had to either make calls or take calls while w/ each other? Are you comfortable enough w/ each other to do life stuff w/ each other - like going on necessary errands and/or making important calls w/ each other?
Going to your house to get the dresses was apparently after bingo, right? Was she pressed for time? While you were thinking she was going to visit w/ you while she got the dresses, maybe she was thinking differently, & y’all just got your signals crossed? Had either of you mentioned anything about visiting w/ each other while she got the dresses? Have you considered that she was maybe just running by after bingo to get the dresses, & the calls just ended up happening at the same time?
W/ just the facts as you’ve related them, expecting you not to occupy yourself in your own home w/ something like watching TV while she was making calls was inconsiderate.
But we’re just getting your side of things.
Did you turn on the TV to occupy your time while she was making calls or because you were irritated w/ her & upset that she was using her time w/ you in your house to conduct personal business related to her upcoming trip - the trip which you think is bizarre & seems to bother you?
WAS the TV loud? Did you have the volume up to a level which would drown out her talking on the phone?
Did she maybe just ask you to turn it down because she was having a hard time hearing her phone conversations?
If she expected you not to watch TV to occupy yourself while she made her calls, that’s maybe inconsiderate. However, if she was just asking you to turn it down so she could hear her phone conversations, I don’t think that’s necessarily rude. Everyone’s comfort level w/ TV volume is different - some people can carry on while the TV noise is in the background while some people need the TV to be quieter.
Presumably, in a 50 year friendship, one friend could say to to another friend, “Hey! Do you mind turning the TV down a bit? I can’t hear what they’re saying on the phone,” without the friend getting upset.