I've been in this situation numerous times. There is a way to approach this and the OP's approach was not one I would recommend.
I've even agreed with neighbours when they have expressed displeasure at what we are doing right next door. And rightly so. I'd be peed off too. However, there is always a way of sweetening things. I've paid for window cleaning, car valeting, new drains, erected new fences blah blah blah, all money and time well spent.
When you are hanging on by your finger nails, don't go waving your arms about.
I've even agreed with neighbours when they have expressed displeasure at what we are doing right next door. And rightly so. I'd be peed off too. However, there is always a way of sweetening things. I've paid for window cleaning, car valeting, new drains, erected new fences blah blah blah, all money and time well spent.
When you are hanging on by your finger nails, don't go waving your arms about.