Boyfriend studying with a woman at 11pm at night, tries to change subjects at the end of the studying?

My boyfriend is studying with another woman for an exam. It’s late at night (11pm) which I find bad enough. I notice at the end of each session he tries to chat abit , for example today he was asking about her new car and giving her car advice. Is this wrong or am I overthinking?

Boyfriend studying with a woman at 11pm at night, tries to change subjects at the end of the studying?
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