Ex playing me or nah?

We have recently started texting each other, but he takes long to reply(maybe it’s cause his a nurse and may he either working or sleeping). And a few of his text message he winked at me. And he recently has been hearting a few of my story (which includes pictures of me) on my day. Does he still have feelings for me? That’s very general and I know those details can’t really tell if he does has left over feeling, but I just want to hear what you ladies think

Update; you guys were right. He is being flirty. He said I’m boo’d up now with winked emoji. And I just told him I’m not.