Double trouble

It seemed a great idea the other night. I gave up making jam a long time ago but the other half eats so much of it he occasionally has a go. Never one to resist a bargain the strawberries were 20p a punnet. They aren't even punnets now. I bought 6 lots! Anyway it's long a story. The jam didn't set last night. Tried again tonight with additives but it's not looking good.
I knew there was a reason why I stopped making jam.