person A: It is good to remain faithful if you are married. Faith and trust are important in a healthy relationship.
person B: I am completely agree.  How long have you been married?
person A: I have been married for 14 years now. We've had our ups and downs_comma_ but a good relationship takes work.
person B: Constant work and attention is key to a great relationship!
person A: Compromise an important part_comma_ too. It can't work if someone insists on being right all the time.