Thanks. Yes, I think we can tell our spouse's mood by what they say/write because we know them best from having a close relationship with them.
I want to share my experience before the email response: I was praying very hard last night and this morning about my H's response and acceptance of the email I sent him last evening. I even walked my dog earlier than usual this morning because I felt God nudging me to pray about it.
After I got back from the doggie walk (and praying), I was still thinking about it and a little anxious and then it was as if God said to me "Trust me and let it go, and imagine your H is happy to get your email". So, I imagined my H being happy and warm towards me. It felt great and peaceful.
When I got to work, checked email - no response. Didn't fret at all. I didn't expect a response even though I hoped for one. At about 10:30am, lo and behold, I got his email response. Thank God!
I am grateful and need to continue to be more and more grateful.
