Changes in mental status can be especially difficult. The alert person you have known and loved may now be confused and forgetful. His or her need for love and companionship still remains though; that doesn't change.
What must change is your expectations for visits. By accepting the status of your loved one, you will avoid feeling let down, or depressed. Try not to underestimate your loved one's abilities either. This could cause him or her a loss of self-esteem. Use your judgment and find a realistic balance for your expectations.