Tej Ran both have seen OTT very nicely. They both know louve angle works in BB. They also know love ke saath ek aur angle le aao aur traingle banao phir that also works.
Are they both using traingle drama, for their own purpose like Teja always brings Shamita's name and than try to portray herself as abla naari to get sympathy. Karan who knows how insecure Teja is regarding Shamita still goes ahead and write message on T shirt knowing his gf will react and in that way he can get sympathy.
They both have done endless break up but still patch up which shows they both won't leave each other till show is over.