Do you think I’ll hear from him or not?

Asked a colleague out for drinks before he went on vacation. First he immediately replied “when?” And so I said “whenever” because he was taking time off and I didn’t think it was right of me to suggest a time during it. So he said “Maybe. I’ll let you know. I have your number I’ll call you.” And then nothing but radio silence this whole entire week. Today is the last day of his vacation, do you think he will let me know his answer or was the silence his lack of interest?

Do you think I’ll hear from him or not?
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