Relationships

What do you do to a silent treatment?

Long story short, me and my girlfriend had many arguments in the pass. Sometimes I was right, sometimes I was wrong. Majority of the times I owned my mistakes and apologised sincerely and gave her space to digest and calm. But mostly I was the one approaching and trying to fix or so called save the relationship because I care for her too much. I love her and my relationship a lot. This time our issue was about her being busy because of her studies and family trips which I can understand, but also couldn't stand the fact that we couldn't spend much time because of her schedules. So I texted and said "So you have time for everything and everyone apart me" out of anger and she didn't say anything. After couple hours I sent message and said we need to speak etc. She sent a voice message stating her reasons and that I don't understand her because our schedules are different and timings are different (LDR). She said if I insist talking about this issue, pls not today as I am over stimulated etc. But she said we could talk about it another day. And she would appreciate if I understand this time. So I said ok. All I wanted was to make her understand that I needed to see some effort as well that's all. So I left it as it is, now it's been 3 days and she hasn't texted or called. What do I do? I don't wanna be the one who approaches all the time. Help especially girls... Do I wait or end up approaching again?
What do you do to a silent treatment?
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