Answer:
They indicate that he doesn't love her and that he doesn't really want to marry her, but that marriage is convenient and beneficial to him in some way.
Step-by-step explanation:
Anton states that Natalya is an excellent woman to marry, she has everything he admires, but if he has time to think about this marriage, he will never marry her, because if he stops to think, he will see that she is not the true love that he desires, even though she has many qualities. It shows that he doesn't want to marry her, he would like to marry for love, but Natalya is convenient for him.