How about "Obviously not enough!"

Or "Really. Interesting. Hmmm. OK. Whatever. If you say so."

Or just "WTF?! Are you high?"

Seriously, remember that some of this might be a test to make sure you are where he left you. So, don't say "I miss you too" in return. Something no-commital, like "I hear you." or "I think about you too."]]

Still like the "WTF?! Are you high?"

Me: 50 W:43
S6, S3
M: 12 yrs. T: 17
M is bad & Not happy Bomb Mar '14
S 5 Feb '15
D Bomb 13 Apr '15 (but "no hurry")
DB Coach May '15
Wants proceed on D Aug '15
Starting 1-on-1 negotiations Sept '15