Originally posted by FMF
Is there any particular approach to JWs whose spouses are not members or have different religious beliefs or who leave the organisation after getting married?
No particular approach that I am aware of.
The Bible states that even if someone is an unbeliever you can still accept an invitation from them.
If an unbeliever invites you to a meal and you want to go, eat whatever is put before you without raising questions of conscience. 1 Corinthians 10:27
Marriage is to be considered honourable among all.
Marriage should be honoured by all - Hebrews 13:4
If someone leaves the organisation and remains married to a believer then in all probability they will still celebrate their anniversary, after all, their marriage is still intact.