I think the A of S is the equivalent to the sword as a magical weapon (or more technically correct - the dagger) and indicates a well functioning mind and rational capacity. Being the Ace, in a way, it contains all the other swords in potential.
It is a clear mind ... not a mind cluttered by ' ....Is he thinking about her...what are his feelings for her ' it is a mind working of and for itself, not full of worry , doubts and projections.
If one can get into this 'clear mind stream' one might find that such issues evaporate. Firstly, it wont matter to you and secondly the other person will be released from the unidentified, undercurrent, niggley, background vibration that such uncertainty projects ... so the problem could evaporate from both sides.
Unless the other person WANTS that sort of dynamic .... in which case I suggest you avoid them ... unless you want that dynamic as well ... i.e. things not going too well, but this card seems to indicate you need to change that.
In most cases I see this card appearing as an indication to have a 'clearer' mind.