Do you think people have to be married if they're inlove?
Of course not. If it is something you and your partner want to do then go for it. If one of you doesn't want to do it then don't. If one wants to marry and the other doesn't and if the issue is pushed/forced then all that will happen is the relationship will end.
On the other hand if a relationship ends on those grounds then perhaps those people were not meant to be together in the first place.
Regardless, you have to live your life for what makes you happy.
Don't live your life for your partner, your parents, etc...
in my opinion, it depend on their aim in establishing the relationship, the question is, what if both of them are already married, yet, they love each other? so the answer is depend on their aim or goals.loving someone does not means you have to own him/her.
Yes, In my opinion " if they are TRULY in love, then they should get to marry.. So they share everything togather :)