He thinks you are his mate. He is bonded to you. This can be a bad thing. Hormonally etc if it Really thinks you are a mate and is trying to court you. The bonding is normal, but if it is sexual in nature, you might want to talk to some experts as it could be unhealthy for your bird.. And your friends
My conure, that I had for 20 years, used to attack my husband if he got too near. He also dominated the cat and used to parade in front of him doing his threat display.