Lease ended, staying one month after lease but last month rent was paid in lease

So I have a confusing issue. My lease is over April. My landlord asked me if I was renewing or not the 13th of April, I said no and that I might POSSIBLY be here until july to which he said it might POSSIBLY be ok. So he didn’t even know if he would let me stay until then and actually never confirmed it. I sent him a message asking if all I needed to pay was utilities and the cleaning fee to which he said yes and that was the end of it. Fast forward to may 12 and he is now asking for may rent. In the lease it does disclose that I need to give 90 day written notice but when we made our agreement nothing was solidified. I am currently looking for a roommate to take my place so hopefully it can be absolved. I’m mostly scared if losing my last month rent and security.