Frankly, I think "a long time" for girls is over 6 months: girls have it easy, as I've proved time and again. It's very strange to hear a girl say she hasn't been in a relationship in a span of time exceeding 6 months.
What is "a long time" for guys, do you imagine? 1 year?
Anyway, it's 8 years for me now. It won't be long until the meter hits 3,000 days. That's not a depressing number, is it? It's always fun having friends who, when they aren't in long relationships, can jump between relationships within weeks. It's totally awesome when they can have more relationships in a year than I've had in a lifetime.