Ex keeps texting me 🙄

So my ex and I broke up a year ago and lately he’s been texting me as a booty call. Last time I told him that we were only friends and that being fwb would just be awkward and he agreed and said he wouldn’t bring it up again. Today he brought up if we were friends or acquaintances and sent a separate text saying he still has my shorts. I replied saying he should just throw them away and he responded with “come over and pick them up tomorrow.” I don’t understand why he keeps trying to get at me when I plainly told him no.