Is it normal to be so jealous?

It's not normal to be that jealous and you will ruin your relationship...this is why men call women psycho...If your truly comfortable with yourself than you should be comfortable in a relationship also. Your relationship is going to stay at a stand still and go nowhere if you don't show him some trust...he will resent you for ruining all of his friendships, even if he's not telling you that right now, your jealousy is getting in the way of letting your relationships grow into something that might be great...I know this because I am in a relationship where jealousy is ruining everything. I love my bf with all of my heart but it has gotten down right ridiculous to a point where he's even called my work to see if I was there. I have kids and am a single mom of course I'm at work...I need to take care of my household. and that's not even scrapping the surface. I stuck in there because I love him very much. But not everyone will stay in a relationship with extreme jealousy going on, so more than likely your already losing him by acting this way. Find that confidence you have in yourself when your single and use it in your relationship. just because your with someone doesn't mean you need to lose who you really are. Don't pretend to be someone else just to hold on to someone. If he cannot love you for who you are than your not going to be happy anyway and if he does love you for you your jealousy may cause you to lose a really great person.

It's completely normal.

When you are single you feel confident and happy because you have NOTHING to lose, you aren't worried about being left, dumped, or being cheated on. The only person to stress over is YOU. However, once you start to date a guy, most guys tend to "look" at other women even when they are walking down the street with you, and they watch porn featuring women that look NOTHING like you. Then they may have friends that are "girls" that they speak to and text and hang out with. That all serves to make you feel insecure about yourself, about your looks.
You start to feel like you may not be good enough or that you have to try your best to look perfect to compete with the people he speaks with or looks at. It's all one huge struggle for acceptance.... but when you are alone all that stress is gone, you only have yourself to please and your self esteem is high because you are comfortable with yourself.

i would say it is normal to be jealous but you have to learn to control it and you have to learn to trust him. if you dont then it will likely ruin your relationship.

Well I guess that when being alone you don't have the risk of losing "him" because there's no "him" so you dont have to worry about being jealous. But whatever, if he chose you, you can be happy for it and stop being jealous because you already know it's just bad. I guess it's so difficult, when youre feeling jealous, try to deep breathe, adn think about 3 points about why he is with you. because he prefered you. because he loved you. or something you guys only know. and then smile and think "he might be doing something i dislike now but whatever, he did these three things before. he's my perfect boy!" <3

oh well iunno but that is what i do. i used to be so jealous too and a guy once told me about the breathing / thinking 3 things that make me feel good. it can even be a bad thing of the girl. like.
I breathe, deeeeep, adn then: "This girl is so tall she seems a moster". "He chose me because he said ..." and then "We talk for hours becuase we are really so close".