Should I give up on my FWB? He joined the military?

He left for basic training around mid march and I didn't really ask any details bit now that he's gone I really miss him a lot and I feel bad rhat he doesn't like me enough to let me write to him. He told me he didn't want a gf because he didn't want commitment (I'm not his type). Should I jist give up and move on? He also went to a co ed training post, so I assume he'll try and date around
Should I give up on my FWB? He joined the military?
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