How can you tell the difference between being loved and being used?

I can only wish my BFF would use me for something, anything besides celery, onions, beans and mellons out of my garden

I had a "friend" trying to get a handyman business going.  He'd invite himself over and talk for hours, then tell me what a great conversation we'd had.  I may have been able to say two or three things the whole time.  He thought he was charming me.   I did feel sorry for him so I kept trying to find thing for him to do.  I let him cut our grass for a high price while we were gone and he asked for an extra $200 in case the lawnmower or something else broke.  Okay, but Instead of giving me back the $200, he said he'd work more hours when we got back.  The next time he didn't pay me back I ask for it and he got extremely angry.  He was just using me so I fired him and broke off the friendship.

When he hands me his heart, I am being loved.

When he hands me cash, I have been used.

If I knew that, I'm pretty sure my life would have turned out differently.