Never been in a relationship, and my ideas of what I wanted have changed a lot over time. Currently I'm in a situation where I'm not looking to be in a relationship for a number of reasons. One is that my work involves me to be gone for long periods of time, or the one I will be starting in a few months will be so sporadic that I won't have that kind of time. The bigger thing is I'm hoping to start Grad school in the near future, which means having to move where I go to school and that causes all kinds of problems. Lastly is how recently my personal politics and beliefs have changed quite a bit, and I'm still trying to figure myself out. There are some other reasons too but those are the major ones.
As far as what I would for in a relationship, it's being open (honest) with each other. I should be comfortable telling her what I feel and the same for her. This is anything from fears, annoyances, wants, and thoughts of the future. A big thing comes down to sex, which can make things tricky. While I most likely wouldn't wait till marriage, personally I only want to have sex with someone I have a deep relationship with. So she would either have to be willing to wait until a certain point in the relationship, or I would have to be okay with her having sex with others until I was ready, which in the former I probably would not like that. Another thing is while I would like to be close and have time together, I do like to have my alone time to just think and just have my space, so she would need to be okay with that. We don't have to have all the same interests, but enough to be able to talk about certain things. If she is a huge One Piece fan that's a huge plus. There's other things but most of those would be finding middle ground as the relationship went on.
As for what makes me happy, there's a lot of things. Travelling, whether in the states or some other country. Walking the dog in the park, whether it's 6 in the morning or close to sundown. Doing anything in the water, whether swimming laps, diving, snorkeling, or just relaxing. Playing video games, reading books or manga, watching anime or You Tube stuff, take a leisurely drive, cooking, and just learning about stuff I don't know.