She sent him a personal message with her number,
she doesn't know him but he doesn't know her.
she never called but he replied this,
" ***-***-*** ha ha :)"
Most Helpful Guy
This is called "Communication" and "Networking", it's part of this grand scheme called "Socializing".
Honestly, if you are worried about this then bring it up with him and make him aware that you are aware. Asking and knowing is better than Not asking and assuming I always say.0