"they are philos (brotherly love), eros (passionate love), and agape (unselfish, self-sacrificing love) my personal belief is that they form a sort of triangle, with each type as a point. the point in the very center is true love, a perfect balance of friendship, passion, and self-sacrifice"
To continue Jannel's point! mmm 4 years later.
I think the assumption is that "in love" is an intimate love saved for someone you are interested in having a dating or marriage relationship with. With this assumption you have the lessons taught of monogamy as we grow up. We grow up thinking cheating is a bad thing, which I feel is the case. It feels wrong to be "in love" with more than one person. To talk specifically about capability, I definitely think its possible. Yet, like Christopher noted, not without a cost in quality. I know I am selfish with my "in love" needs and wouldn't want to have to share it with another person.
Love is not a single plain emotion, but three dimensional and full of robust capabilities. I think true love falls best in this defintion. "Love is patient, love is kind. It is not jealous, (love) is not pompous, it is not inflated, it is not rude, it does not seek its own interests, it is not quick-tempered, it does not brood over injury, it does not rejoice over wrongdoing but rejoices with the truth. It bears all things, believes all things, hopes all things, endures all things." 1 Corinthians 13.
Sorry for the tardiness in posting, but I wasn't even a PIP member until recently. Great question SEA!