Transit reminder: the Aquarius Sun squares Juno (committed partnerships) at 12 degrees Scorpio. This aspect hi-lights tension between independence versus the desire to merge fully with the partner. The Scorpio/Aquarius square describes the struggle towards individuality and detachment against the magnetic pull of intimacy. Both are valid. But if one overrides the other, or if one partner feels threatened by the other's freedom, there's a problem.
If you have anything around 12 degrees of the Fixed signs, this aspect asks you to look at who you are, as an individual, in your relationship. Or, if you're running away from intimacy.