How to mend relations with a colleague you offended?

I invited everyone at work to my wedding except a particular colleague and he is offended. He went as far as to block me on social media. Will my decision result in a disastrous working relationship?  Have a work-related question to ask a career counsellor? Email us at cnapodcasts [at] mediacorp.com.sgSee omnystudio.com/listener for privacy information.