Aquarius and Taurus are both fixed signs, and that shared stubbornness is the whole story of this pairing before you even get to the romance. Fixed signs do not shift plans easily. Once Taurus has decided Sunday is for slow breakfasts and pottering around the house, and Aquarius has decided Sunday is for a spontaneous meetup with friends they met on a forum last month, neither one is going to budge just to keep the peace. They will each dig in and quietly assume the other should be the one to adjust. The good news is that fixed energy also means loyalty runs deep on both sides. Once these two commit, they actually stay, and that steadiness can make the relationship feel remarkably safe once the early friction is worked through.
Where they diverge is in what they are being fixed about. Taurus is fixed on comfort, routine, the physical and sensory pleasures of a shared life: the same coffee order, the same corner of the couch. Aquarius is fixed on ideas and independence, on staying a little bit unpredictable so nobody can pin them down. Venus rules Taurus and wants closeness and touch. Uranus rules Aquarius and wants room to roam. That is not a small gap. Taurus may feel Aquarius is emotionally elsewhere even in the same room, while Aquarius may feel smothered by Taurus wanting nightly check-ins.
What helps is that both genuinely admire conviction in another person. Neither one is flaky, and once they respect each other's need to hold their ground, they can build something unusually durable, just slower to warm than either expects.