Sex is only one way in which people give and receive love, so although it is very important, it is not the only way to develop or express intimacy. (Jonathan Lenbuck)
In my opinion men often struggle with emotional intimacy because many are raised to prioritize strength and independence over expressing emotions. Studies show that only about 30% of men feel comfortable discussing their feelings. For example, research by the APA found that men are less likely to seek emotional support, which can make it harder for them to build deep emotional connections.
Thanks Rohit for commenting. I also think that men's sexual responses are so strong that they block out any more sentimental feelings. Men have sex to obtain sexual relief. Women have sex to please a partner but these female emotional responses do not equate to male sex drive.