In an ideal setting, you won't have to get married to anyone. But we don't live in an ideal world so the least we can do is be as practical as possible about stuff that are sentimental in nature. If you love someone, ask yourself some tough questions. Is it really love? Are you capable of distinguishing between attraction and love? [Attraction is what bee feels for flowers while love is what sun feels for flowers. Attraction may or may not nourish while love nourishes as well as destroys.] Why do you want to marry her? A bill of permanence maybe? What is it that would change if wedding takes place tomorrow? Anything at all? Will you start taking her for granted once you stroll around agni seven times? What are you scared of? A worthless paper? Isn't wedding something of a formality to appease the society and to stop the bureaucracy from breathing down your necks? Do you want kids? One is enough? Can't you have one out of wedlock? No? OK. Just asking.
There are many more questions which i'm not aware of.
Try to find them and answer them before you take the plunge (hopefully not into agni).