Is it normal to miss your ex everyday

I miss my ex I was very lonely before him we both had our problems but we connected and found each other and we weren't alone anymore.
Together we did fun things neither of us had done, the type of intimate emotional/spiritual connection i've always wanted but it wasnt perfect but it was good because he loved me and I loved him.
We grew apart as a couple but remained friends who did everything together. We argued but we always worked it out because we cared about each other and he was more honest as a person than anyone I met so I respected him through anything. We arent friends anymore since 3 years, we had a very petty fight based on misunderstandings and it happened over text. The last time I saw him in person was a dark day...Sometimes I wonder if we were cursed apart... It was summer, we were meant to go swimming, but it was suddenly stormy and dark. We still walked to the beach on his request and as soon as we got there I felt a lump in my throat, bad, just bad vibe...Shortly after we open local paper on the phone to check something and at the top page is the news someone drowned on that beach only hours earlier...We left.The lump in my throat cleared.
When he said bye to me that afternoon he hugged me, which he rarely did.
Whatever happened...we are no longer friends. Just like that when we wouldnt let anything get between us before. My heart is sad