Check the full article for more details and an Apple "happy trap" services timeline
"Just ask anyone who’s in a modern mixed marriage…that is, living with someone who doesn’t use the same smartphone operating system. It’s a relationship strain: How do they send messages? Share contacts and directions? You could use Google’s apps and services like Hangouts and Photos, but even then, everyone in the family has to agree on them.
One friend of mine tried switching to Android, but text messages started getting lost in his girlfriend’s iPhone iMessage app. (iMessage is known for causing headaches to those who move to Android.) He switched back to an iPhone in a week."iPhone 6s: Apple’s Best Trap Yet - WSJ