Unknown, unwanted contacts in my forwarding list of "people"

I went to forward an email to a few people tonight and when I clicked on TO: a list of "people" came up.  Most of them were my contacts however there were two on there that don't belong.  I don't have any idea who they are and I want them removed.  I went to my regular list of contacts and they were not on there.  Please tell me how to get them out of there.  Also I am missing some of my contacts; they have just disappeared.  And I have people who are in my phone who have somehow been brought over to my hotmail account and I don't want them there.  Those I can delete as they are in my regular contact list.  I don't like this new setup.  It is frustrating!!!  PLEASE HELP!!!!