Would he have persevered, and uprightly, Fanny must have been his reward, and a reward very voluntarily bestowed, within a reasonable period from Edmund's marrying Mary.
Had he done as he intended, and as he knew he ought, by going down to Everingham after his return from Portsmouth, he might have been deciding his own happy destiny.

But he was pressed to stay for Mrs.Fraser's party; his staying was made of flattering consequence, and he was to meet Mrs.Rushworth there.

Curiosity and vanity were both engaged, and the temptation of immediate pleasure was too strong for a mind unused to make any sacrifice to right: he resolved to defer his Norfolk journey, resolved that writing should answer the purpose of it, or that its purpose was unimportant, and staid.

He saw Mrs.Rushworth, was received by her with a coldness which ought to have been repulsive, and have established apparent indifference between them for ever; but he was mortified, he could not bear to be thrown off by the woman whose smiles had been so wholly at his command: he must exert himself to subdue so proud a display of resentment; it was anger on Fanny's account; he must get the better of it, and make Mrs.Rushworth Maria Bertram again in her treatment of himself.
In this spirit he began the attack, and by animated perseverance had soon re-established the sort of familiar intercourse, of gallantry, of flirtation, which bounded his views; but in triumphing over the discretion which, though beginning in anger, might have saved them both, he had put himself in the power of feelings on her side more strong than he had supposed.

She loved him; there was no withdrawing attentions avowedly dear to her.