Hey,
is it from rate.ee website? :) "Vv" is specific slang originating from rate.ee, it's an acronym of "väljavalitu" - literarily meaning 'chosen one', in there just someone who is marked on website as girlfriend/boyfriend, in literature this means more or less someone being engaged.
The expression quoted above is slang (don't learn it as an example of Estonian :), in very correct Estonian it should be all long sentence:
"Tere, kas sooviksid minuga tutvuda või väljavalituks saada?", and the meaning is "hey, let's become acquainted or novios".