Sorry if this has been answered many times before but a search didn't bring up one result. If you get blocked on SA what does it look like on our end?

I don't think I have, but I do get conversations that the person no longer has a profile. These are usually the ones where they're trolling as pros and get banned right away. BTW lots of pros on there right now. Easy to tell they want to meet right now or are you free this week, without even an introductions.

... as hard as I try they won't allow my return. It totally stinks.

You can sometimes get a clue from your message log.  

If you still see her profile name, but don't see/can't see her profile, she probably blocked you.  
If you only see "Sugarbaby" instead of her profile name, she was probably banned by the site.  

 
One other way to test is to create a second, unpaid account (using a different email). You can search by her profile name in her area. If you find her, she probably blocked you on your main account. If you can't find or view her profile, she's either:  
1. Hidden her profile from search
2. Deactivated her account  
3. Got banned by the site  

 
Life is good

 
The Cat

Ah, I remember that from a pervious post. I remember now that you said it of course. As always, thanks HC.