Is It A Breakup??

I am with a man who we agreed to get married together after 2 months. I knew him for 7 months and we started our relationship as a serious one from the begining - our families know about it.

We began imagining our life together and preparing for it and we even made wedding reservations.

Recently, I was under pressure and I said crazy things that made him angry, like I don't like our future life and stuff like that. I didn't mean what I said and I don't know how I said that, I said it without thinking.

That made a big problem and immediately the next time i apologized and he said ok it's nothing.

But after that he was so cold I could feel it. So I opened the subject and apologized again and tried to let him understand that i really regret it.

He told me that he is thinking of a breakup but didn't tell me because he doesn't want to hurt me. I tried to fix it again and he said he has to think of it more but doesn't know how much time he needs.

I am confused. Is it a breakup? should i leave him alone to think?

After talking to him I felt that he is hesitating that's why he asked for some time. But is it right to wait?

I know I made a mistake but I regreted and I was the one who opened the subject and apologized even without him telling me that it made him angry.

What do you think I should do?