I was with my boyfriend for four years of college together all the time.. came to college together . Left ,ate slept,talked together... were like together ALL the TIME. We were having a happy time. But since two months both of us are working and in different offices and that too late hours. From where we used to stay together all the time now it is like we don't even get time to talk. N OMG.. m freaking out! It started with issues like not giving time to me like not speaking to me when free .not sharing with me all the talks that he has with his friends and now so much so that me getting insecure about very minor issues. It is very frustrating because somewhere at the back of my mind I know that what m saying or doing is not right but I don't know I can't control this thing. I know he loves me very much but I don't know I get angry very soon and it takes him hours to make me normal again. But now due to his office and long hours of travelling and him not able to meet me, even he gets frustrated and gets angry; something that m not used to! This makes me even more sad. I am not able to help myself as I know I should give him space .it will improve our relationship but I am not able to do it.. please help me out... I need it seriously.. I don't want to lose him. Please help

This is typical with people as they begin working after college. Work changes a person's life. It can make you tired and worn out. The key to a good relationship is being able to weather these changes. You must accept things as they are and try to be a support to each other. Your current lives just no longer allow for so much time together. You must make the best of the time you do have. Be understanding and work to manage the change to both of your lives.

This will happen throughout your life. There will always be changes. How you deal with them is what matters. Let him know you are there for him but don't nag. When you do have time together, appreciate it. Enjoy it. Make it special. Don't spend it arguing, nagging or worrying. That's what makes good relationships tick. Its okay to let him know that the change is difficult for you, but also that you are trying to adapt.. and that you appreciate him still.

'Long hours of travelling?' Are you doing half of it?
There's also the job pressure differences. Does his job expect work until the project is complete, even if it means working long days, while yours allows you to go home at an exact hour, or are they about equally demanding?
We can't make you curb your anger and frustration. You have to ask yourself which is worth more, expressing your feelings and risk losing him, or keeping him and accepting the need to stay happy and pleasant around him. You don't really believe that yelling at him is going to make things better...
The next time you see him, go overboard to just be glad to see him, and make a supreme effort to say nothing about time apart. See what happens.

Oh, and join groups or classes after work, and make friends at work to go with in groups. You need 'filler' to keep busy and not wreck this relationship by being so exclusive.