Why would a guy who close friends with a girl act surprised when she wasn’t interested in speaking to him?

He cut all of contact with her and they haven’t each other in two years. When she used to try to call him he would quickly get off the phone and said I’ll call you back, but he never does. Or he’ll never answer her calls. He changed his phone number. Why would he act so shock she doesn’t care about him?

Why would a guy who close friends with a girl act surprised when she wasn’t interested in speaking to him?
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