I know that the break up hurt you, but it doesn’t sound like his reasons for breaking up were wrong since he was going to serve in the military and wouldn’t be able to see you while he was doing this.
Stop worrying about how he got your phone number and focus on whether or not you’re too hurt to hear from him again. If you’re not seeing anyone and you’re still interested in him, and he’s ready to commit to you, this could be a good time to hear from him.
I hope that helps.
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