What sounds better?

I care about you getting what you need to be happy; this job won’t help you get there in this way _____. I’m happy to help you get to where you are going. Would that help?

Or…

Thanks so much for chatting! It was great talking to you. I’ll get back to you soon.
[Recruiter sends you an email a week later declining the job without explanation]

Nice is avoiding the direct conflict and opting for an email.

Kindness is having the courage to speak the truth and the compassion to help someone move forward.

Kindness trumps niceness.