i have just killed a hunter while walking past fallowstone cave and then a vampire fledgling ran past so i pressed Y to speak to her and it said this person is busy so i followed her in the cave and now she is just standing there saying "Yes yes i havent got all day"

i have proof of it here

http://i1358.photobucket.com/albums/q769/michaelpk/skyrim%20vampire/DSCF1139.jpg
http://i1358.photobucket.com/albums/q769/michaelpk/skyrim%20vampire/DSCF1138.jpg


i use Xbox 360

has anyone else had this encounter before.

Yes. A bandit. Then it attacked me after it finished the sentence.