Pressed something and can't find how to change back!! PLEASE HELP!!

[defaultz69ggvfax44l]

Hello, I now have a problem. I usually make a line, and can both move it (drag it) and rotate it with just draging it in it's ends in like a big square. But now I can only move the line and nothing else. I'm not that good at this program and can't find what I have pressed but it's very important for my work to get this fixed and I'm getting really frustrated. I hope someone can help me figure out this problem. 
Sorry for my english, I hope you understand 😄

[Ton Frederiks]

Is that really a line?

What do you see with the object selected in the Window > Transform panel?

Line Properties or Rectangle Properties?

[Ton Frederiks]

And maybe it could be View > Show Bounding Box

[SJRiegel · Accepted solution]

View > Show Bounding Box

The keyboard shortcut that toggles this is Shift + Command + B on Mac - 

[defaultz69ggvfax44l]

Thanks now it's normal again! 😄