Does it really take that long for a man to recover from a declined marriage proposal?

Anonymous
My brother was only 22 years old when he delivered his marriage proposal to his then girlfriend. They were dating for 5 years; both met as 17 year-olds. She said no, that she wasn't feeling the same, didn't see it like that and more excuses. He had a very hurtful expression (on the verge of tears) I've never seen before. The relationship ended soon and he was different since then. He hasn't said ''I love you'' to another woman since and would have casual dates, nothing serious; all short-lived.

Present-day: He's now 26 years old and finally met someone he finds unique and likes a lot. He seems happy again. He's slowly letting his guard down but not too fast.

So basically it took him 4 years to recover from that. Apparently this left a scar on him. Does it really take a man that long to recover from a declined marriage proposal? Is it that bad?
Does it really take that long for a man to recover from a declined marriage proposal?
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