D.F.
To tell you the truth. I try to always be honest. I believe you can be honest without offending anyone. And if you are being strung along by someone, then ask them to be honest with you. I would not bother with someone after a second time. I would move on and make new friends that want to hang with my kids or me. Maybe another time usually means there is not going to be another time. I have told neighbors kids to give it a rest and come back on a certain day when they were younger. I said it with a smile and we saw them in a few days. Good luck!