Argument over lettuce?!?!?!?

ok my dad had me wash some lettuce last night and put it in my tank i did that i washed it VERY well and put it in my tank after i put it in there it stopped moving around and the Male Lyretail Molly went to take a look at the lettuce and if the female would come near he would chase her away and she would go hide in my log so i washed another piece of lettuce and put it in the hole in the log that is in my tank and now none of them are touching the lettuce hopefully i left it in there long enough to get a little algae bacteria to grow

anyone know what i should do?