The only 'purpose' of love is an evolved mechanism to reward behavior like procreation, pair-bonding, and forming relationships, given that we're a tribal animal. As a person in a loving relationship, I'm not sure why you use an analogy that suggests love is unattainable or should be.
What I understand is that love is an emotional experience that feels great, and some people will never experience it naturally, just like some people have physical or mental conditions and can't experience health naturally (speaking from experience). I would rather have surgery and be able to experience a normal life if I couldn't do so naturally, and if I was unable to find love naturally, I would also rather have an AI that can effect the same experience in me.
