Words of Anger? or something else?

I have been talking to a guy seriously for a few months now, and it has gotten super intense. I have known him for quite some time, but we have never really invested in each other like we have been doing.

Well lately, when we have disagreements, he has been saying thing like “ maybe I didn’t see this side of you before and maybe we are not meant for each other”, something that makes me overthink. Seeing how I’m investing all of my time and energy into a relationship or trying to build one, what does it mean when he says these things? I get so confused.
Does he really feel this way or is he saying it out of anger? I really need some insight to what or why is this being said, especially since he told me I was HIS PERSON.
Words of Anger? or something else?
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