It is animal nature generally to desire companionship. And we all know man is also a higher animal. This is why despite all the negative stories about marriage and love out there, more people are still getting married.
Medicine is hard enough as a specialty. Heck...life can get hard sometimes.
Medicine is a jealous lover especially when you're just getting settled.
Know one thing...love is never unkind. When they tell you "I love you" but they always treat you bad...that is far from love. Love is anything but selfish.