RT the art of love

I want to know why do we want somebody we love? We as humans can't live without somebody to love? we are programmed to love someone since we were born, that is, since we are small, we look for someone to love, to appreciate, to make us feel good. Couldn't we live without someone like that? Is it because we see how others have relationships, in series, movies, news, any other source. I myself believe that life consists in building a board. A board is made up of what makes you feel comfortable, for example a family, a house, a company, a garden, your room, etc. So, if we don't want a relationship, can we live life without having someone to love?
I have not met anyone who lived life without loving a person. I wonder how different life would be without the feeling of love. not really the love itself of activities, objects, hobbies, etc./ like being able to feel complete without a person. how could we continue life from beginning to end without loving a person/ to lead life without love/
finally, after venting on this little 'essay', I think we are programmed to love from the beginning, but do we necessarily have to love a person? why can't we totally love anything other than living things