Ask-a-Dave's-Gardener: Is this flowering vine diseased?, 2 by ultravi01

ultravi01 wrote:
I'm not sure what the name of this vine is, but about a week ago the flowers started to brown around the edges and then fall off completely. A couple of days ago the leaves began wilting.

I did fertilize the lawn about a week ago and I suppose some of it could have gotten on the vine, but I can't imagine it would be enough to do this... but maybe?

Any idea what is going on? I've attached a few pictures.