I mean if Magnus is so in awe of Alec giving him a gift what else can Alec do that hasn’t happened to Magnus in a long time? Let’s say making a meal.
They had plans to go out one night but an emergency happens in Spain that leads to Magnus spending pretty much his whole day there and texts Alec that he’s too tired to go out, rain check?
When he eventually portals home after an exhausting day he smells something wonderful wafting through the loft and finds the table set up complete with candles and a small bouquet and Alec in the kitchen just finishing up making their plates.
Magnus just stands there in wonderment and Alec smiles when he sees him, gives him a hello kiss and tells Magnus to go freshen up.
Magnus doesn’t remember or even if anyone has ever made him a meal like this and after receiving that gift he’s falling even more for this Shadowhunter and wonders who he should thank to have this angel in his life.