Why is my supervisor suddenly being so helpful?

A few months ago I started a new Job Where I was Assigned 2 supervisors.

I currently only work with supervisor A who seems pretty chill and trains me While supervisor B mostly ignores me while being friendly and chatty with everyone else.

Recently however supervisor B started offering me help and inquired when I would be in the Office. I find that a Bit odd since He rarely acknowledges me when I am in Office and He doesn't know exactly what I am Doing.

I am Wondering if He is only Helping me Because He thinks I don’t get the Job done. He was the one who interviewed and hired me so maybe He only helps me to Save his ass Because my Performance Reflects on him. What do you Think?

Why is my supervisor suddenly being so helpful?
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