I too am very new to cash tables & don't play them very often(Small BR atm)
I did play 1 a few days ago & sat down with the min buy-in of 80c.
The guy who joined me at the table (with the same buy-in) is a guy I keep coming across on my site. I've built up some respect for him as he is a solid player & we are both weary of each other when we are on the same tables in MTT & SNGs, so I was anxious to play HU with him.
But once we got started, I played agg & raised him PF every hand, the first few hands I actually did have decent hands, but since he folded to every raise on them I decided to keep raising even with nothing but rags. Although this is not the approach I would usually take, it payed off & he re-bought 3 times before giving up playing against me.
If you repeatedly fold out to PF raises, the guy will just keep stealing from you.
Remember that if your opponent is playing every hand then he cant possibly have the nuts each & time, most of the time hes prob playing nothing but rags ,but the fear factor has you folding out even when your holding ax, kx, qx or suited connectors, which are prob much stronger hands than he is raising you with most of the time.
In this situation you need to bite the bullet & let them know that stealing isn't a option & that you're not afraid to call him & play to the mercy of the draw. In HU conservative play doesn't always pay off, you need to play the player & the odds
& not the cards your holding, especially in this situation.
With his buy in (1k, if that's possible) sounds like every situation was potentially an ALL-IN one. What ranges were you playing? In HU, my range can be extensive. You need to adapt to your opponents type of play.
My advice to you would be to get some more experience playing HU, where you will come across all types of players, but ye will have the same amount of chips to start with & so "the fear factor" wont be an issue.
All the best!