Ask yourself what you--not he--needs. Obviously, you're not getting what it is you need. Forget the jealousy accusation and just ask yourself what you want him to be for you and if he isn't going to be that-- find someone else.

One of the replies to your states it, "Are you satisfied, when you are left, feeling neglected? Is 'that' truly a matter, of 'trust'? "

No, it's not a matter of trust but of what you yourself want. Believe me, if your partner's not going to give it to you, don't expect that he will ever change.

This person is probably not right for you and won't make you happy.