There are girls that think that being with a female is a lot easier than being with a male. So they'll go & become curious to figure out what it is they want since being with a guy was so heart breaking.
In my opinion being with either or is just the same. The only difference between the two is what is in between their legs. Woman or man can both hurt you, break your heart, be violent towards you, shatter your entire being (if you let them). Just because you are tired of dating a guy doesn't mean the right guy isn't out there for you. Don't go messing with a female (especially those that actually love females), leading their emotions on for something that you are unsure of actually wanting.