I remember you from New to the site, any advice would be appreciated
If you feel like you are gaining weight, then it could be possible that you might be gaining muscle weight. It could also be that your calories are too low for your activity level and fat loss, and your body is fighting you.
I recommend that if you're going to do only three resistance training sessions a week that you do FULL-BODY - you'll get more benefit out of it - and do it like a circuit with three rounds of 10 reps per exercise per round.
If you're only doing Legs, Arms, and Abs, then you are missing out on a LOT - where's the Chest, Back, Shoulders? Be LESS concentrated on your arms and abs, and if you're going to do a split three days a week, then do Legs/Abs, Chest, and Back/Shoulders - you can chuck a small exercise in for arms in at the end of say Chest day - since your arms are going to get worked with your compound exercises (and these are the exercises you should be doing!) Or do Upper Body, Lower Body, Full-Body.
Make sure your calories are not too low and that you're drinking enough.
Also, at your body composition, using a fat burner is not necessary, IMO - get your NUTRITION AND TRAINING on target and you should see results!