Dear T,
Pretty sure I'm your most annoying and needy client right now, probably ever. Thanks for putting up with me. Please keep doing so.

Love,
LT

PS. Of course I wish you'd thrown in a "hope you're doing better this afternoon" with the scheduling text back and forth, but that's not what you use text for, and I resisted the urge to use it for any of that. I mean, I guess "sorry for the indecisiveness" isn't totally business, but you said "no worries," so I'll take that literally.