Being ignored by housemates happened to me before, that time i was very sad, i tried my best to talk to them..at least i'm the one started the conversation but still nothing changed. So in the end, i gave up then later i move out from the house.. now I'm staying alone, so when i recalled back what happened in the previous renting house i felt no guilty or sad because i already tried my best to be friend to amend the relationship..so no regrets!