Drunk Man In A Bar - Tumblr Posts

Was told by a random drunk old man that he loves redheads ( referring to me) just because I was buying a beer (it was a red beer) and idk I just feel so bad, he kept talking to me, he asked to have a photo of me, and kept staring and laughing at me with his drunk friends, I don't know what should have I done? i was not capable of say anything, just walked fast out of the bar with my beer.