Is everything fine in your relationship or there are some issues on which you both are not able to come on the same page. Are there any trust issues. Is he more into himself bothers less for you.
So there are n number or reasons to get sense of insecurity in relationship. Do not hide yourself, talk to the concerned person.if you feel that things will get better then wait for some time without forcing yourself on to him.
If you feel that there will no changes you can move forward in your life.
Next Steps
don't think of giving your life may be Destiny has planned better things for you.