Autumn is the date: Set the wedding date in autumn.
Use your car to pick up my dowry. Yi, refers to use; er, means 'you'; car, refers to this, which is easy to understand; come, means 'come to pick up'; I, can be translated as mine; bribe, refers to dowry. To move means to take away.
The sweetness of falling in love and the longing for married life later turned into regret for her husband’s hypocrisy and deception and her determination to abandon the relationship.
The above is just my personal understanding.