Hey Scotty,
I am/went through this already, I was bi-sexual throughout highschool, dated guys and girls but there was a chick I met that I really liked.
With that being said, while I attended highschool I met a guy that I liked, two years later we got married and my thoughts on woman never changed. It almost became passive where all I could think was about being with another woman, being in a relationship etc. Part of problem/downfall to my marriage was because of this and I know I am happy with decision I made.
I still consider myself bi-sexual although I am predominatly attracted to woman. It is not to say though if I met a guy I liked I probably wouldn't say no...
I can envision myself in a relationship with either a male or female but I don't feel tied down with a female but it can happen with either side.
Marriage is not obligated to live but you being happy is what matters most, if you pursue marriage and are genuinely happy, then kudos! If not than it is not healthy for you to continue on, do something because you want it and not because you feel others will frown upon you.
Seriously ask yourself a few questions, why do you want to get married? Why do you like guys/woman? Why would you want to hook up? these questions are just a start of a process but alot of it is from our upbringing and society (aka traditions/morals.) I consider myself "androgynous" and I try to figure out where I stand because there is pros and cons to both sides.
Hope I helped send me a pm if you ever want to chat:P!!
Later~!