Originally posted by: mistofshadows
 
+1
Fateh is not in love with Tejo at all.
He is her best friend and is reluctant to share her with anyone. It is here that we need to understand his present mental state.
As long as Tejo is with him...he is stable, perceptive even.
But when there is the slightest chance of her going away, his psyche brings back the feelings of abandonment, the ravaging insecurity and overwhelming self loathing that he had to go through in the past few weeks.
Tejo is not just the person on whom he depends or his best friend and wife. She is also the only relation of his dark past that turned out to be positive and give him an assurance that he is not a failure. I am sure, he definitely has underlying issues of feeling like a failure with the number Jasso has done on him. But Tejo is the only positive thing that turned out good for him in the entire spectacle.
Even if they weren't good friends, Fateh would not have been comfortable sharing her affections or goodwill with anyone at all. He doesn't even like Jasso touching Tejo's mobile. Trust me, if his character is properly studied...he has many issues now.