I've seen this girl twice, a month between each time. Our schedules are hard to align, but each time we got together for a few hours, laid about, and fucked 2 to 3 times. Very fun.

In between seeing each other, we don't talk much. I'll message her, a few days later she messages back about when she can meet, and then we meet. And fuck.

If I go a long time between seeing her (1 month, 2 months, or more, say) is it important to message in between now and then to keep interest fresh, or be completely silent until I'm ready to schedule?

I'm fucking other girls, but I would prefer that this one not drop.