I'm not sure. Sure, I think you can be addicted to love. Everybody wants to loved by that special someone. Love is one of the most powerful emotions that anyone can experience. The only clinical term I can think of is codependency.
Some people jump from relationship to relationship, because they are so dependent on others.
There are people that have a fear of being alone. They are just too scared to see what life is like on their own. If you want to find more information check the Internet. I hope you found what you were looking for. I'm a 20 year-old junior in college who can't decide if I am gay or not.