Somebody that you love, and especially in the romantic/sexual sense. A sweetheart.
Warning: For every day of joy, there is one of woe, if you get my drift. The more you love someone, the more he makes you cry, or makes you crazy.
Still, those parts can be worked past. Lovers provide emotional support, shelter in a storm.
"Erik and I are partners."
"Business partners?"
"No, he's my life partner."
"Your what?"
"You know, my lover, my darling."
"Uuhhh..."
"We're gay, stupid. That's what. He's my boyfriend."
A person with whom your relationship is primarily sexual and romantic.
Lover is a title given to someone you are dating with whom you are infatuated and addicted to sex, before you are sure where your friendship is going.
If you add good friendship to lover-dom, you will probably end up with a Relationship or a partnership.
If are missing good friendship, the relationship will dissolve into fuck-buddydom or a complete break up.
Linda: What is going on with Mel?
Jane: I am not sure, but the sex is mindblowing and the world melts away when we are together.
Linda: Oh! The essence of lover-dom!