This is why "Forums" and "Texting" are not very good formats when all you have in front of you are words that can be taken in more then one way, especially when you do not know each other and how to take them.
When you aren't either with them in person or at least hear a voice along with the words used, you don't know how to take someones statement.
Too me it seemed sarcastic.
If it wasn't, then accept my apologies.