What does it mean when a guy says to you he wants no expectations in the relationship?

What does it mean when a guy says to you he wants no expectations in the relationship? That expectations can lead to resentments, and he doesn't want me, his girl, lady to expect anything of him? Have been dating over 8 plus months.

Is this another way for a man to say he doesn't want or isn't seeking a commitment...kind of like "have your cake, and eat it too". We have basically been seeing each other exclusively for over 6 months.
What does it mean when a guy says to you he wants no expectations in the relationship?
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