Yeah not sure what UTG was doing, maybe he misclicked..I dunno I really put him on a SC, AXs, or pair hand.
J2s is a terrible hand Ryans, and I would pretty much never call a raise with it, especially against a loose aggressive player. Against some really nitty players I might call a min-raise or something to try and spike 2-pair and get paid off, but generally you should really fold it no matter how loose the game.
Some people do Limp with AA and KK, trying to get re-raised by an aggressive player, but that is really more of a full ring (9-10 handed) move from EP.
What I found helped me out alot when learning was watching some videos of people playing, it gives you a basic idea of some basic strategy, you see you can play fairly tight and don't need to make moves (I know I thought I needed to be very aggro when I started 5-6 handed NL)
Here is a link to a video I made 2-tabling NL100 and a link to a video Twelver made 4-tabling NL400, the NL100 game should be very similar to the NL25-50 games you play in
Maybe these will help,