Proof Of Continued Contact.

I am looking at getting my partner over on a fiancee visa and it has been a good number of months since we met in person, we regularly contact each other through email and recently through Facebook on each others walls (both our profile pics are of us together) but not through their messaging service. Now all my online accounts on the internet are under pseudonyms so how do we resolve this fact? I do occasionally call her from my mobile phone but never text her. Any suggestions on what can be used as supporting evidence that we are in continual contact? If I suddenly changed the name on my email account would that help or would me writing to confirm that the email and Facebook accounts are mine be evidence enough on it's own to convince the UKBA that they are and we are in contact? Any thoughts and suggestions? Thanks.

They won't care what your email name is.  Don't stress it, as long as you're in touch and can prove it, you'll be fine.