Just a heads up really, hopefully it will help someone.
If someone has blocked you on AW, your SENT message will IMMEDIATELY show as 'deleted' under the Date Read column, and the message will still be highlighted in purple.
This is different to the recipient receiving it and deleting without reading a short time later. If the recipient deletes your email without reading when you AREN'T blocked, it will show in your SENT items exactly as above, BUT you would have previously seen it as highlighted in purple with a BLANK SPACE in the Date Read column.
So. When you send a message to a WG via AW, immediately check in your Sent items folder. If there's a blank space in the Date Read column, you aren't (currently) blocked. But if it says 'deleted' then you are (prior to sending that message) blocked. If that blank space eventually changes to 'deleted' then she has deleted without reading.
Hope this makes sense and is of help to someone.
(ps - I found this out last night, when a "23 yr ol" said he wanted to be my "sugar daddy" all in txtspk, who then got offended and blocked me when I told him to email me and he couldn't even do that, so I said I wasn't interested in "sugar daddies" who weren't able to write clearly or follow a simple instruction. My final reply showed up as immediately deleted. I tried again and it did the same. He'd blocked me. His last message to me? "Ur los". Pahahahahaha!)