I miss my boyfriend so much it hurts, what can I do?

My boyfriend has been on vacation for four days now and he comes home on Sunday. I miss him so much!! I've been going on with my life as usual but at the end of the day I start crying because I miss him so much. We talk everyday but it's actually hard for me to do and saying good night to him is even harder.. I don't think he cries over me like this, he seems to be busy with fun activities while I can't wait for him to get home. I feel so ridiculous. I just want Sunday to come now. Seriously what can I do? I want to be happy not sad, I don't want to cry my eyes out before I go to bed.
I miss my boyfriend so much it hurts, what can I do?
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