You need a PARTNER
Partner has no commitment on relationship, simply said as function of mood. You can easily dump him/her as your individualistic master you in time. No strain.
You need a COUPLE
Couple have no strong judgment on gender. Homo or hetero.
You need a SPOUSE
Spouse defines him/herself as a loyal clan of a tie. A vow and declaration must be manifested in terms of reference.
You need a SOULMATE
Soulmate believes in love before he/she was born. He/she sometimes not realistic, but cushy to believe in destiny. No rush.
I mention about You. Then what about ME. I doubtless need all. A great combination. So the satisfaction will be the function of time, mood, belief and peaceful. 
