What is your experience with having an emotionally unavailable partner?

What is your experience with having an emotionally unavailable partner?
Have you ever had a partner who you thought was a good match, you had fun together, you spent much time together, you were sexually compatible, and everything felt great except. . . even after a year or more, they were not in love with you?

Did you feel frustrated? How did this resolve for you? Did they eventually lower their barriers and let you in or did you break up?
What is your experience with having an emotionally unavailable partner?
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