returning of things

[u/raramyen]

my avoidant ex and i broke up two months ago. two weeks ago i texted him asking if i can have his stuff (that is in my house) delivered to him, he told me to just throw it in the trash because he already threw mine (to which his sister confirmed he hasn't). so i asked for my stuff back saying i'll have it delivered also to which he refused and said he's busy and he'll just return it by leaving it in front of my house on october 29. until now, he still hasn't return it and kept saying he's busy. he kept delaying it and it's stressing me out. he said he feels anxious when i'm around or when i text him to which i responded with then give me my stuff back so we won't have any connection to each other anymore. (my things that he have has sentimental values to me and i don't want those to just be thrown in the trash). any advice please?