Am I a lesbian?

I’m a young woman in college. Up to now i’ve only dated men, and tried anything with men. Every relationship feels nice until a few weeks in and I start getting fed up over the smallest things, i also never feel like aroused with them physically this isn’t because they aren’t attractive because they were and i could see why people would find them handsome but am I a lesbian? i’ve always thought about what it would be like with a woman but i’ve never been attracted to one but i think that’s because where i live it is very rural and there isn’t anybody like that. I also only exclusively get aroused by a certain look on women, but i can feel aroused by things men say, only things they say though and this is like 90% of the time over text