Gyys why is it that when you get comfortable with a girl you stop being intimate, or ignore her? Or am I just picking the wrong type of man?

I have been with a guy for a year and a half he has not taken me out on one date and he has not been intimate with me in 6 months and now I'm officially done and kicking him out and also he doesn't respect me anymore.
Gyys why is it that when you get comfortable with a girl you stop being intimate, or ignore her? Or am I just picking the wrong type of man?
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