Try scheduling your day together further out, maybe two weeks? And then try to make it a regular thing where you're just on her calendar, every week or every other week, just the two of you, to spend time together. And maybe if there's a night you know she's going to be working late, swing by with some Chinese food or takeout to grab a couple minutes with her then.

How long have you been together? What do you do? Is your schedule fairly flexible?