The trousers look terrific on you Mo. I think this may be an easier sell with your BF/ SO/ partner/ other half if paired with something really simple like your draped white tee shirt and black sandals.
From what I remember your SO does wear patterned shirts, therefore, I would argue this is just the same principal and he just needs time for his eye to adjust.
The tunic is also lovely on you as well as tights and leggings I couild also see this with your boyfriend shorts peeking underneath.