Should I delete him from Facebook?

My boyfriend and I broke up one and a half months back. I did not delete him from my fb. Maybe I had a hope that we might get back together. Anyway today he posted a pic on his Fb and I can see some girl posting hearts and romantic emojis in the comments. I just feel like deleting him now. But I feel that if I delete him now from my friends list after so long I will appear weak as if I am still interested in him or care about him. What do u guys think?
Should I delete him from Facebook?
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