In love, Mars in Taurus tends to move slowly and densely. There's none of the "saw them, asked them out on the spot". First comes a long looking-over: a reading by smell, by voice, by the way a person eats and sits at the table. A straight declaration comes hard, and usually arrives through a gift, a dinner, a concrete deed rather than through words. More often than not the partner is left to work out for themselves that they've already been chosen.
Inside a couple, this person tends to become the dependable one on all the practical fronts. They'll feed you, drive you, fix the thing, settle the bill without making a discussion of it. That's a form of love, and partners often undervalue it because they're waiting for emotional fireworks and fine speeches and getting quiet care instead. The downside runs the other way: their own needs are rarely spoken aloud, and a year or two in, an unvoiced grievance tends to start accumulating, carried in silence.
Sexually this is an unhurried, bodily, very sensual partner. A long lead-up, touch, scent, taste, skin — all of it matters here. With someone who treats sex as quick and mechanical, the contact tends to fade fast. With a partner who knows how to do a long dinner and a slow bed, though, the configuration tends to open up for the long haul and not burn out over the years.
The main difficulty is exactly the one I flagged under the shadows. Banked grievance doesn't come out in small instalments — when it surfaces, it tends to come out large and cold. It often looks like a sudden decision to part after twenty years of an "ordinary marriage", when in truth the decision had been ripening across all twenty. I'd put it like this: for this placement, the central task of love is learning to voice displeasure in the moment rather than file it into the ledger until there's no way back. None of this is set in stone — it's a tendency worth watching in yourself, not a script you're bound to.