Metabolism

You say you're EATING 1300 cals which suggests you are not eating back your exercise calories. 1300 cal is a low daily intake and it is entirely possible your metabolism is slowing on that intake.

Try eating back your exercise calories.

Do you know what you are burning at the gym? If it is all cardio for up to an hour then you should be eating calories back(you never mentioned if you were). MFP allocates people 1200 cals at a min, this often turns out to be under a lot of peoples bmr(you should maybe look this up if you aren't sure). If you are eating under 1300, we'll call it 1250 and are burning up to say 300 cals each time at the gym then technically you are under eating. My maintainence cals are 1700. if i minus 20% it actually gives my my bmr of 1360 but i eat 1400 and add on exercise cals. The most i can lose healthy going by mfp 1200cal figures is 1 pound a week but i choose to go with eating at least my bmr. Some people with less to lose don't realise that they don't have the maintainence figures to lose up to 2 pounds a week. 7000 cals in 2 pounds=-1000 cals a day defecit.

usually a 15min run, 10mins bike, 10mins crosstrainer, then 10mins crunches. . average day!
Hight - 5'10, Weight - 182 Pounds Age - 24.

Might sound stupid but i feel that because ive just burned calories in the gym i dont want to then go and eat more than i should.

Well you should stop thinking of it as offsetting your work and instead, you shoudl start think that eating enough calories fuels your workouts. Based on your stats, you should be eating around 1800 calories daily. Also, I would suggest a few other things, adjust your macro's to around 40% carbs, 40% protein and 20% fats (more protein = muscle retention and improved satiety). Also, I would highly recommend a good weight training program like strong lift 5x5. You will see much greater body changes with a WT program over a cardio program.