My husband ignores me in social situations, why?

He does it all the time and I hate it. We attended to a wedding last weekend and his friends were there too but I didn't know everyone there. He said he will say hi to his friends and come back. He didn't come back until the wedding is OVER. He does these kinds of things all the time and when I get very angry he tells me I exaggerate the situation. Am I? Why he keeps doing this? Isn't it rude? Sometimes when we meet their friends as a group he doesn't give me any attention at all. Why?

My husband ignores me in social situations, why?
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