At least he let you know you were beat on the river. When the A comes, you do have to realize your outs are cut to four possibly. That doesn't mean you have to be afraid of monsters under the bed, but get a cheap showdown if you hit the wrong end.

limping scs utg isn't horrible if you play goot postflop. I'm not at that level yet.

I don't think you played this too horribly, as long as you folded to the push. You might check to him on flop, but I bet my draws too. Turn bet is too small, though. If you bet it, beat 1/2 pot or more.

If you really want to open your game up, raise this PF. Just be careful postflop and don't do it all the time, just as a changeup.