Others dating in your home will definitely not affect your fortune and feng shui. Blind date is nothing more than chatting and having a meal, which won't affect you.
People can choose to believe in some feng shui fortune, but don't believe too much in things that can change everything. Feng Shui is a philosophy that studies the laws of the environment and the universe. Since man is a part of nature, he is also a part of man. As long as people believe that they can do well and have a good attitude, good things will come to you.