Without a doubt anyone can change if they have the right motivation. Of course you may wish to consider what investment of time and effort will be required, while enduring the results of living with someone who has such issues.
Jealousy and control issues (IMO) stem from reduced esteem or insecurity. This isn't to say that every one who has tried to control another's behavior is thinking they are worthless anymore than a jealous behavior constitutes fear of abandonment. The reality is that at differing times of our lives each of us acts or behaves in both of these manners to some degree. How frequent and how intense these episodes tend to be may be the question that needs answered.
The picture is my girl and I a year ago, at the strike of the New Year. A picture that may not have been available had we not been able to surpass both the issues raised. So we have gone through it. With patience, love and respect I know it will continue
On the other hand, sometimes we get with people who just plain drive us nuts. Should that be the case - leave. Another person will come along. When you are confident and capable of giving what is necessary and it is NEVER enough ,,, maybe you just need to be with someone else. Generally speaking of course...
btw- she is also a Sabrina