2. They embarrass you in public
If you notice that they constantly insult you but pretend to be your friends, you might just have some jealous neighbors. When people envy you, they might start to criticize you and everything you do.
And what is worse is that they might find it pleasurable to put you down in front of others. If you ever achieved something and your neighbor, whom you consider a friend, started to publicly shame you in front of other residents, we have some bad news: they might actually not be your friend.
Jealous neighbors might do this because they want to make themselves look better than you. If they consider you a threat, they might intimidate and embarrass you because it makes them feel better.