Is it normal that my facebook profile picture is of me and my dead ex?

A couple of years ago I fell in love with a guy and he went to rehab for depression and we lost touch.I was always wondering if he was okay so I would ask everyone how he was doing and his family didn't like me, they thought it was none of my business but I was really concerned about his depression. I was really upset with when he eventually got married to someone else, and I would look at pictures of them and be so jealous. I was also angry with his family for swaying him against me and so favorable towards her. I would always look at his and our pictures and reminisce, wishing that we were still together. We had not spoken in a couple years and I found out not long ago that he passed away because of suicide. I now found it as an excuse to post a picture of us on facebook as my profile picture. Its more of a RIP memory, but we didn't even talk and we weren't together. He really wanted nothing to do with me, he was just the only guy I have ever really been in love with. No one really understands how I felt about him, they just thought I was weird and obsessed when all I did was truly care about him and his well being, even if that meant letting him move on to someone else and stop bugging his family so that he could find happiness. I still loved him though so I posted the photos. Is that normal?