I have this tendency where any guy who I feel looks at me in an admiring way or guy who shows a little interest or admiration might be the one and then I will fantasize about being with that person but then someone else can come along- do the same and then I'm like wait maybe that person is the one and then fantasize about them-maybe this is a normal occurrence for people but I do struggle with insecurities and low self esteem- so maybe that is why too- or is this common?/ why do you think it is?