Shouldn’t want him back but I do

So, my ex deleted me off Facebook a week after we broke up, and on the same day added the girl that he was planning on cheating on me with a few months earlier. Long story short, he was texting some girl in his class and she was sending nudes, they were being sexually flirtatious, and he wanted her to ride him instead of a motorcycle apparently. I saw the texts and it was a mess, tried to make things work, and he broke up with me three months later cuz our relationship was tainted or whatever bull. So yeah I felt like he was choosing this other girl over me.
ANYWAY… A friend of mine posted a pic of me and him and a bunch of other friends at an event and the next day, my ex deleted him off Facebook too. This has been more than a month we have been broken up. I have had zero contact with him and he just decides to unfriend my friend on Facebook coincidentally the day after a pic of me is posted on his feed? And he didn’t delete my sister, just that friend.
And the day following that, he dropped off another bag of my stuff to another friend’s place. I didn’t know what else I could possibly have left at his place when I already took all my stuff the day he broke up with me, and the next day he dropped off more crap. No contact for more than a month and all of a sudden he decides I had more stuff at his place a month later??? And inside the bag were bobby pins, a silicone jar opener, a tube of toothpaste, and a college t shirt. The t shirt I can understand, but the other shit was all garbage.
I’m not entirely sure how to assess the situation. Like is he thinking of me? In what way is he thinking of me if he is? If i want him back is this my window?