How does one define a relationship between sexes?

I'm at an impasse. I'm totally incognizant of how to define a relationship, between sexes, or genders for that matter. Coming out, I discerned, and then ultimately fostered an insular view of sexuality from the opinions of others. I was aware that two men or woman were able to reciprocate attraction for one another,but my conception of sexuality, generally ceased there, with that. The problem lies where I solely congealed my philosophy around that principle. Later, as I grew older, I learned that there existed differing qualities that were identified under sexuality: gender, romanticism, tendency, and preference. I fear now my beliefs have become irrelevant and I'm unaware of exactly how to adapted those principles in my philosophy. Generally, I am asking how to define sexuality. Would it be incorrect to identify a relationship between sexes through roles? Where does responsibility in a relationship between two men or two women? What is a relationship between two men or women? How does gender influence a relationship between sexes? How does romanticism influence a relationship between sexes? What would a life look like between (Although, I'm well aware that despite sexuality, the lifestyles between individuals vary dramatically) two individuals. I do not know how I would go about crafting my own relationship, because I don't retain a very sound idea of the function of one. It's all ambiguous to me. Can you help me, EC community, to define one, or is a lifestyle, including the routines/ order that follow one, undefinable and forged all by experience? Or is a relationship all chaos? :bang:

 

Thank you for your advice. It helped a lot. I've realized that I may focus too much on making sense of things. Relationships should form naturally. I understand now, and thank you again for your words of insight.