The bridegroom is like a king. Just as a king is praised by everybody, so is the bridegroom praised by everybody (during) the seven days of the feast. Just as a king is dressed in garments of glory, so the bridegroom is dressed in garments of glory. Just as a king is rejoicing, with feasts in his presence, all his days, so || the bridegroom is rejoicing and has feasts before him all the seven days of the banquet. Just as the king does not go into the market-place alone, likewise the bridegroom does not go into the market-place alone. Just as the face of a king is shining like the light of a sun, so the face of the bridegroom is shining like the light of a sun, as it is said, "And he is as a bridegroom coming out of his chamber, and rejoicing to run his course" (Ps. 19:5).
...
One who marries a virgin should celebrate with her for seven days, during which time he should not do any work or buy and sell in the marketplace. Rather he should eat, drink, and be happy with her. This applies whether he we previously married or not. (Rema: A bridegroom is forbidden from doing work, and is forbidden from going to the marketplace alone [Ran, chapter kama d'ktiv and pirkei rav Eliezer]).