Guy only calls me when he is driving?

I have a guy I am interested in that only calls me when he is driving. Usually on his way to work and on his way home. Sometimes on his lunch break too. Not as frequently though. We’ve been talking for two months and he does this pretty much daily. How do i know if I am just a friend or he wants more? He calls and tells me about everything. But doesn’t really flirt often. What does this possibly mean? He sometimes texts in the evening. But only if I initiate it and I get one or two word responses. He is a single dad. So I know he is busy
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+1 y
I should also add, I never call him. He does it every time. I don’t want to bug him
Guy only calls me when he is driving?
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