Sorry if this is long.
Last year new neighbours moved into the house at the back of us, their house is west facing and quite large, ours is east facing and small so we are restricted where our sitting area is, we own the fence between the properties. There is a large elder tree hanging over our seating area which has produced several saplings which are now fence height and soon will hang over, they have also let ivy grow through our fence which is damaging it, even though we spent ages getting rid of it on our side. They have also sown climbers on their side of our fence.
My H saw the lady who lives there and mentioned the ivy, she said it doesn't bother her and to just cut our side, she also told him about the climbers. He said nothing about the damage or overhanging branches or berries or advised her she shouldn't be growing climbers up our fence.
AIBU to be mad with him for practically giving her permission to allow damage and inconvenience to us and cutting off any light to our seating area and AIBU for being cross with her for not caring about the state of our fence and garden.