Yes you are right with that last point!
"Love can die if you don't water it"

Relationship requires time to time check like calls and social nets makes things easier, you ping your spouse even if you can't call, this is very important in relationships cos there are people out there who need him/her and ready to care about her/him more than you can do

Only you will miss him when you need him by your side

Only you would miss her when you let her go