Me and my boyfriend have been going out for 2 years and 2 months. We have had problems before. One time we almost went on a break, but we couldn't and it continued fine, however after figuring out stuff everything was good. A few weeks before everything was perfect. We were like old time as in the beginning. However a few demands and jealousy this week killed it. He told me he wants to talk to me because he is not sure of being in a relationship, and I'm pretty sure its me who demands too much, and has been jealous, but I don't know what to do. I don't want to loose him, we have been through a lot and it means a lot.

Best he want to sit down and talk, that is a good sign he wants communication open. All couples, no matter how happy they are in a relationship, have 'bumps in the road'. After 2 years it would be a shame to throw in the towel. Just maintain your cool, don't get upset, that will do nothing for the situation and I hope you both sort it all out and stay together.

First off why are you jealous? What about you makes you that insecure? Jealousy can be a huge turnoff to guys. We are with you because we want to be, we look at others because they are there and we are visual.
Do you also play head games because of your jealousy? Eventually, these things get old for a man who is growing up and wanting to move onto having a family.

"i dont want to loose him" - Apparently you do since you are unwilling to change your behavior. It is simple, change or lose him. Sorry to be blunt but if a behavior is causing him to not want to be in a relationship then work on changing it and show him you are willing to work on changing it.

Talking and listening should lead to solutions and not just burying things that will come back to bite you later.