Ideas for maintaining intimacy across distances

Hello again. I am currently on day seven of edging, and it is driving me crazy; my concentration at work is shot. I have managed longer stretches before, but this might be the horniest period yet for me. Perhaps it helps that I have a girlfriend who will be in Asia for three years, though I wonder if I can really wait THAT long. I am looking for suggestions on how we might share intimate moments through texts or video calls. It is tricky because she has very little free time and can go quite some time without sex or masturbation, whereas I cannot stand it well. Plus, with the twelve-hour time difference, when she is sleeping I am working, and vice versa. Any thoughts?? She also doesn’t do much texting beyond saying that she misses me and my “best friend” as she refers to it.

I want her somehow included in my sexual life instead of me either cheating or just jerking off whenever I please. Sorry if I went a bit off-topic, but I truly desire having sex with her again; realistically, though, it won’t be possible for quite a long time. This isn’t the specific type of tease and denial that I was hoping for.