So very many loves.
So much room in this here heart. Do you really think there's only room enough for one?
Even though love for your offspring is a different kind of love, we will use it as an example. A parent has space in their heart for more than one child. Love grows. It multiplies. The same can be applied to romantic love.
Adoration for one romantic partner does not change the affection you hold for another. In fact, a new romantic interest can help to reignite a flame with an already existing romantic relationship. Don't you feel happiness when a partner is happy? Their happiness may be because of another partner other than yourself though. They are feeling good... Practically glowing. Isn't their glow attractive? New is fun and exciting. Not better, just different.
Honesty is simply the best and it's completely freeing. Feelings of jealousy don't cease to exist because of polyamory but, everyone involved should be consenting adults who are aware of the practice of ethical non-monogamy. Communication will help process those difficult emotions. It's actually very healthy.
We don't own others and if they are giving of themselves to us, that is their gift that they are sharing. Isn't that a wonderful thing? And don't you want to be with someone who really genuinely wants to be with you?
I don't know about you but, I like variety and would not be my happiest if I could only ever eat pizza my whole life or only have one ice cream flavor after I declared how delicious I though the strawberry was. Vanilla is yummy too!