Am I overreacting because he hung up to take a call from a ‘friend’?

I am talking to a guy currently and he got off the phone saying his friend was calling and he called me back and said they were asking how they were doing. I am just suspicious why did he get off the phone with me to answer a call? And why did he call this person a "them"?

He's very honest and he let's me use his gaming account and he hasn't told me a lie yet he's been honest but i am just suspicious on who this friend is? Am I overreacting? Or?
Am I overreacting because he hung up to take a call from a ‘friend’?
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