You can force someone to love you. You can prevent, or stop, someone from loving you. If you love each other, you will always sweep each other off your feet. Without love you have nothing at all. Love equals sex and because one is good means the other will be too.
Romantic love equals a good marriage.
If you love someone you will give until it hurts and then give some more with no expectation in return. Love relationships don't have conditions attached to them. Love is a good reason to get married. Human beings have an unlimited capacity to give and receive love. Love conquers all.