I texted my ex now I regret it?

I texted my ex saying that I miss him. It was just a spur of the moment thing. I told him I understand why we can't be together anymore but I still miss him regardless. I felt so embarrassed that I deleted the message but he had already seen it. I apologized for sending that message and he said he didn't know how to respond and that I shouldn't feel sorry for sending that. So yeah I feel like shit. I just hate that I'm going through

Op been there where your at with plenty of guys in my youth. I felt like shit as well and then felt stupid when the guy didn't respond. But you did nothing wrong we've all been there.