I would look askance at any company trying to imply there's something wrong with you for not accepting their offer. Sounds like you made a good decision. Not

I would look askance at any company trying to imply there's something wrong with you for not accepting their offer. Sounds like you made a good decision. Not sure what "reason for rejection" you gave them initially, but none is needed. "Hey, I appreciate the offer but I've decided to go elsewhere - would be cool to stay in touch" is plenty.