Difficult situation but I'd probably start dropping hints about how many expenses you've had just lately and are having to economise. When the next meeting is suggested try saying why don't we bring food and stay home to eat - that breaks the habit of you paying all the time. Definitely do not remortgage to give them money - asking you to do that is a step too far!
We generally go to visit our son and usually end up going out to eat but both he and my husband split the bill most of the time - sometimes one or other will insist on paying the lot.
Why do hospitals, most of whom have large catchment areas, make accessing them so difficult?




