What's with the obsession with finding interest in other people? I mean, why do some people have such a high need for interesting conversation? Can some people really not entertain themselves enough on their own? I mean, judging another person's personality in terms of excitement? Why is that so important? If someone's funny to be around, then they're just...fun to be around at that time, and I just lucked into a cool person. However, it's not a priority to me to find another person to spend a lot of time with that captivates my interest. I can find hobbies that might involve people at some point, but my entertainment doesn't revolve around direct relation with another human being. It might be a pre-requisite for something else I want to do.
I just see people as an added bonus side effect. :P What standards are you using to judge "boring"? Are you talking about fun that can be measured by an intuitive's standards? An extravert's standards? A Perceiver's standards? Spending time with someone else to me is about experiencing something I enjoy with someone that I care about. It's about the experience and the extra effect added onto the experience provided by the emotional attachment. Standing on a pier with a significant other looking out into the sunset in the Spring air, rays shining down, wind blowing around us, taking in everything around us and enjoying the moment together. That's what makes a relationship worth it to me.