Ex 27M, is trying to take over everything I’ve, 24F, wanted

Not sure if this is the right sub, as this pertains to an ex relationship instead of a current one. Me and my ex bf broke up a little over a week ago, after around 2-2.5 years. There’s honestly no bad blood and we ended on pretty good terms, I think the relationship was honestly over a year ago, but we kind of just let it fizzle out.

Both of our current leases are up at the end of July, we had no plan of living together but we were both trying to find our own separate places. Maybe this was partially my own fault, but I didn’t think anything of it at the time as every place we found, we would show each other or mention it to one another. It’s also been difficult as we both have our own dog, he’s been a little more easy going about finding a place with a yard as he’s fully remote working, but it’s more crucial for me since I go into the office for majority of the week, every week. So a day or two before we broke up, I showed him this one specific place that I’ve been really loving, nothing set in stone but I showed him the website, where it was, etc. After showing him, he liked it a lot too. I hadn’t been able to tour it at the time as they closed tours for over a week due to a bad flood storm we had that damaged their leasing office, but I was talking to the leasing agent every day for about two weeks. I pretty much had my heart set on it as it was absolutely perfect for my situation, and the earliest he could get me in for a tour was this last Friday. I would’ve honestly applied before touring, but I have toured places before that seemed great and turned out to be a shit hole when physically touring, so I held off. Friday comes, I toured it, loved it as expected. When I was touring, the agent mentioned another person came right before me who had the same exact dog as my ex boyfriends, but I didn’t think anything of it at the time, just thought it was a coincidence…

Before I wanted to make a decision, I had one more tour scheduled at a different place today, I just thought I’d go through with it to fully narrow down everything. and I also just wanted to be sure so I wasn’t paying $200 in application and administration fees for the off chance that I liked the second place more, not likely, but just wanted to fully be confident in my decision. I toured that one today, I liked it, but not as much as the first one (just as I thought). So I go home to apply for the initial one, suddenly that one specific unit with a yard isn’t available anymore. I immediately started freaking out and then I connected the dots… of course it was my ex boyfriend who toured right before me and it was him who applied for this place. Now I know I’m partially at fault here, and maybe if it was anyone else who got this apartment, I wouldn’t care as much, but for it to be the person who broke up with me??? The person who didn’t even know this place existed before I showed him??? So now i’m honestly fucking livid, and I really don’t know where to go from here. I texted him about dropping off his stuff and thought to just take a shot in the dark and ask him straight up. Of course he did apply for this specific apartment and I cannot get over his reaction. He basically stated that he doesn’t hate me so I should have no problem coexisting in the same building as him, lol. I guess I’m coming to this sub to see if anyone has had to deal with this before and what they did/to do here? I know it’s a unique situation, and may seem like not that big of a deal, but this apartment was actually perfect for me and took me a long time to find just for me to feel like he “stole” this from me. I honestly don’t know if he did this because he hates me or is trying to still have the upper hand in a way, but it’s just really rude and I am honestly at a standstill on what to do, if I can even do anything at this point. I asked him to place reconsider, don’t know if he’s even going to respond, but times running out and I am at a lost.