Is this considered stealthing?

Last month I had sex with a guy I was seeing. I ended up taking his condom off to go down on him (because I thought we were done) but then he tells me to turn back around and so I did. He then proceeded to penetrate without a condom, without asking or telling me. I thought he put it back on or got another one at first, but the more I thought about it the more I remembered that he went in for a minute then came back out, took a few seconds longer, and then I felt the condom. I had thought he put one one but I was wrong. It wasn’t confirmed until I asked him last night. I honestly don’t know how to feel about this, especially since he ghosted me after we dI’d it, we’ve been back in contact trying to work on things, and after finding this out I’m not too sure if I want to proceed with him.