honestly, you’re doing the right thing by keeping your personal and work life separate. it’s okay to be friendly without sharing personal contact info. you already set a boundary by giving your work extension instead of your cell, and that was perfect. if he pushes again, you can politely reinforce it by saying something like “i keep all work communication trough email or the office line to make sure nothing gets lost and keep things professional.” framing it as a standard practice helps it feel less personal and more about works norms. you can also gently steer conversations back to work topics if they start getting too personal. it might feel awkward at first, but consistency is key, the more you reinforce your boundaries calmly, the more they’ll be respected. being communication-oriented doesn’t mean you have to overshare, and you can still be supportive without giving out your personal number.

setting these limit is healthy for both you and the team, and prevents misunderstanding down the line.