Whats the point of upen staying in BB House?

I still remember upen referring Karishma as his sister in earlier episode and now seeing current episodes I can safely say "Oh yes Soni was Upen's sister as well"

In Sonali - Upen angle even after being intimate with her Upen put all the blame on Sonali only ... Oh yes I forgot Upen is a decent guy

As a viewer it takes time to understand what Upen is actually talking about .. all i can understand when he talks to karishma is "Maie jaan tu ye kar ... sun maie jaan .. tu ye tu wo.."

Upen had the worst ever eviction, he wasnt given a proper good bye ...but still come back shamelessly

so whether these qualities were enough to call his as a "Guest" ...one day two days three days ... its almost a week .. now he should be thrown out!