Do guys ask girls to choose between casual or serious relationship?

the guy I have been taking to since a month asked me what I want. He said that he is ok with anything. Initially I had told I wanted a serious relationship and he said he wanted the same but later when I told him I am not ready for any type of relationships he said let's go for a casual relationship. I am confused if he truly likes me or just wants sex. Do guys give options to the girls they like?
Do guys ask girls to choose between casual or serious relationship?
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