Ps I mean don't do this of course, but imagine a thought experiment in which YOU have a big problem and you need him to make time for you (not just a smiley face text message texts are free these days)
Or fuck it, just some situation which requires him to take a little bit of genuine physical time and effort and energy which isn't just sending words on Whatsapp. Say there's a bit of tension at work and you need him to cover for you/have your back.
Does your "nice friend" help?
I'm kind of imagining him as some charming, externally polite type (or you wouldn't think of him as "nice") but often these people are the worst for being users.
I had an ex colleague who was very "posh", smiley, easy going, bit of a hipster vibe, we had a lot in common socially and everyone thought we were "besties".
The reality was he was very self-interested - I had a bullying situation and had to complain solo (which he didn't back me up in) and management moved my department
and he then complained behind my back I had been moved to an "easier job"? I mean he was "nice" externally but certainly didn't have my best interests at heart.