Yes. These things do happen. I can tell you that there are two sides to this. Let's say you are married to somebody for a period of time and that person dies. In some way you carry feelings or emotions. You carry on a relationship with this person after the death. Now some people would say, "I just feel my wife. I can feel her presence." That would be a paranormal relationship. This is healthy, as long as it doesn't become something that takes over your life. That can cause some distress in your life. The unhealthy side of this is what my business also deals with. When a person for whatever reason becomes attracted to a particular spirit, what they would call a spiritual teacher, this can be unhealthy.
