I agree with all the reassurances you have been given, and also that in all probability this "friendf" was being deliberately nasty. For what it is worth, I long ago came to the conclusion that well in excess of 95% of the human race are fundamentally decent people. Not all of them take the care not to inadvertently cause discomfort or whatever (i.e. many are careless or indefferent), it's true, but it is very unfair on the great majority to as a rule mistrust everyone (have "prove you are not a a'ole" as an opening test for everyone to pass). Moreover, that does awful things to your mind and you will definitely come over as someone dislikeable (people usually are at least instinctively quite perceptive). Be open, be friendly, but don't let false prophets/friends take advantage of you and hijack your feelings. Have the confidence of your knowledge of the truth about yourself.