Quoting jethro: She moved closer to me, rested her leg against mine then took my hand. It was so nice... I try not to think too much of these things because she's done this in the past. When I've asked her about it (given our sitch), she just says she does it because she feels "comfortable" with me.
I'm sorry this is wearing on you, but I see things like this as wonderfully positive. I know you want to be cautious in anticipation of the next "alien encounter", but be sure not to overlook the positives entirely. Please, take it from someone who has not experienced these little gestures in a long, long time. (I would be over the moon if this happened to me!) I am hoping my situation can be of benefit somewhere, if only to point out how good yours is by contrast!