Elizabeth is sure that Jane and Mr. Bingley's marriage will be happy because - well - before Miss Bingley messed everything up, they were a very happy pair. With Miss Bingley out of the picture, there can be no one to interfere and twist Jane and Bingley's minds. So without that interference, Jane and Mr. Bingley are left to their own devices to have a happy marriage, and Elizabeth is very confident that they have many.
Jane and Mr. Bingley are both shown to be very optimistic, happy, nonjudgmental people. They both avoid confrontation like the plague, but can speak their mind if they feel it is important to do so. That will get rid of any petty arguments that can put strain on a relationship.
They are also shown to have similar interests. They like to dance, they don't really like to read, they like to enjoy life. There is no conflict of interest there, either.
Lastly, there no burden of money, which can put a strain on any relationship (just look at Mr. and Mrs. Bennett for an example!) They will always have a comfortable life with Mr. Bingley's salary, close to family and friends, so there will be no squabbles about 'how are we going to pay this' and 'how are our daughters going to survive.' They have enough money to not worry about that, which will make their marriage an easy and happy one, according to Lizzy.
Lizzy believes Jane's marriage will be happy because she observes genuine love and compatibility between Jane and Mr. Bingley, witnessing their mutual affection and understanding. Additionally, Lizzy trusts Jane's judgment and discernment in character, leading her to believe that Jane has made a wise choice in her partner.
Lizzy's Bennet's ideal vision of marriage is one where, in addition to being in love with ones spouse, there is a mutual respect for each other, and a meeting of minds.
Lizzy Plimpton goes by Liz, and Lizzy.
Lizzy does not approve of the fact that Lydia and Wickham eloped. She does not approve of the fact that they were living together, unmarried. Lizzy does not approve of a thoughtless and imprudent marriage, but acknowledges that it is the necessary action under the circumstances. Finally, Lizzy has seen the consternation Lydia's thoughtless behaviour has caused, and doubtless is upset by it, especially since it was predictable, and Lydia should have known she was hurting people by acting the way she did.
Lizzy Escoto is 5'.
Lizzy Leduc is now 16
Lizzy Ansingh was born in 1875.
Lizzy Ansingh died in 1959.
Lizzy Kladensky was born in 1925.
Fizzy Lizzy was created in 2000.
Lizzy Law is 160 cm.
Lizzy Long was born in 1984.
Lizzy Brooks is 5' 2".