[OrganisedChaos]

Do you mean the appendix 2?

It should be your fiance but you can complete it as though you are the applicant. I did this for my husband's application as I wanted everything printed and sorted ready to hand in when I went to stay with him and submit.

 

[OrganisedChaos]

Yes the form you need to complete to support this is: http://www.ukba.homeoffice.gov.uk/sitecontent/applicationforms/visas/vaf4a2.pdf

It is mandatory. Print it off and include with all other documents.