It's quite embarrassing to say, but after going to the bathroom I find later a bit of urine on the tip of my dick, this cause it to smell and my gf feels less in the "mood" to pleasure me, is it normal?

Also I suffer premature-ejaculation I usually last 5min or so but there is 2 occasions where I lasted an hour and felt like impossible to cum.... Also I found that I last longer when she is wet is this normal aswell?

(just for information, I don't wear a condom but she has got a bar done)