"Faithful companionship" means having loyal and trustworthy friends or loved ones who are always there for you, providing support and company in good times and bad. Full definition
So after ten years of faithful companionship it was time to say good bye and hope I will see you again at the rainbow bridge. (schnauzers-rule.com)
They give you unconditional love, provide faithful companionship, help relieve stress for you after a long, hard day at work, and are extremely loyal and accepting. (wagbrag.com)
Some may need a little extra patience while adjusting to a new home, but once they feel safe and secure again, most will give you years of faithful companionship and unconditional love. (carolinehumane.org)