Photos of ex

My ex & I have been broken up for a year now , but within that year we have hooked up multiple times . Last time we hooked up was in December. Him & I don't talk anymore,but when's the perfect time to delete pictures of us from social media ? He deleted one pic of us on my birthday (last year)on our 2nd break up. I still have him on Insta & fb , but like I said we don't talk . And I don't have hard feelings for him anymore & im currently talking to someone (nothing serious yet ) is it rude to still have photos up of him & I?