I ordered some seeds that were supposed to be an Aloe mix, but I ended up with something that is definitely not Aloe. My best guess right now is some sort of Mimosa?

Pictures attached. Its leaves fold up at night, but they do not fold when touched (like the Mimosa Pudica). Started seeds in early April, making the plant about 5 months old in these photos. The seeds germinated pretty quickly – in about a week if I remember correctly.

Any ideas?