She was perfectly convinced of it.

It would be an excellent match, for HE was rich, and SHE was handsome.

Mrs.Jennings had been anxious to see Colonel Brandon well married, ever since her connection with Sir John first brought him to her knowledge; and she was always anxious to get a good husband for every pretty girl.
The immediate advantage to herself was by no means inconsiderable, for it supplied her with endless jokes against them both.

At the park she laughed at the colonel, and in the cottage at Marianne.

To the former her raillery was probably, as far as it regarded only himself, perfectly indifferent; but to the latter it was at first incomprehensible; and when its object was understood, she hardly knew whether most to laugh at its absurdity, or censure its impertinence, for she considered it as an unfeeling reflection on the colonel's advanced years, and on his forlorn condition as an old bachelor.
Mrs.Dashwood, who could not think a man five years younger than herself, so exceedingly ancient as he appeared to the youthful fancy of her daughter, ventured to clear Mrs.Jennings from the probability of wishing to throw ridicule on his age.
"But at least, Mama, you cannot deny the absurdity of the accusation, though you may not think it intentionally ill-natured.