My boyfriend and I have been together for three years and a few months. Sometimes we planned our future, but I always brought up the topic. We both know that we don't want it right now, but I like that we have some goal in common (such as that we can't wait to live together, to have children…). He never started that conversation and it didn't bother me (I didn't even notice it) until he started saying that such topics suffocate him, that he doesn't want to bring up such things, that we still have time and that he doesn't want us to rush. We know that this is not our current goal and we have always said that it would be in about 5 years. As he started to avoid such topics, even when his friends asked something, he didn't seem sure, he seemed quite suspicious to me, but I didn't make too much of a drama. In the last period, it bothered me more and more, so I asked him if he was at all sure that I was the right one for him, and he always somehow answered with a smile as if he was sure. He seemed sarcastic, I know him very well. Today, I asked him again, live, whether in the three years we have been together, he is sure that I am the right one for him, to which he said that he had already answered that question. I said that he is suspicious to me and that he should tell me honestly because I can see that he is being sarcastic and doesn't have the courage to tell me. He fell silent and I didn't expect an answer because he knows how to ignore me from time to time, but he answered suddenly: "I'm not sure, I'm not." I thanked him for his honesty, to which he said: "I'm being honest, I'm not sure at all." And he told me all this with a raised tone.
Now I don't know what to do, all this time I was the one who was sure that I wanted to spend my life with him, and he only pretended to be.
TL/DR: Should I continue the relationship or end it?
I'm very sad that we both don't think we're right for each other, that he doesn't look at me the way I look at him.🙁