Some, argue that jealousy in small doses is good for a relationship or a friendship to grow. I certainly disagree, and I do so from previous experiences.

It is true, that when your partner is jealous of you, (s)he would give you moreattention. But this kind of attention, is not necessarily the good kind of attention that you are seeking for. Jealousy is more often than not derived from lack of trust and various self-insecurities (Maybe because of previous life experiences or trauma? Psychological issues?). It will urge you to be possessive, be suspicious and in the long run threaten your relationship.

If you can’t trust your partner, why are you with them in the first place?
Issues related to jealousy and trust, will eat you from the inside. You’d become paranoid, with a feeling of abandonment… No relationship with these symptoms can end well.

It is a known fact that leading cause of spousal homicides are related to jealousy. 

On the other hand, your partner will feel badgered and frustrated because (s)he is not being trusted. All the mundane and constant questioning is tiring;
What are you doing?
Where are you?
Where are you going?
Who you’re going with?
These questions are demoralising, leaving the person without any personal space and feeling guilty.

It is okay that your partner wants some space, to do some things (s)he enjoys doing alone.
You can agree on an evening a week to spend apart, play that game you wanted to play, catch up with friends or go clothes shopping. I believe, it is important to have a life outside your relationship.

My advise:
1. Put yourself into his or her shoes – how would you feel if this jealousy issue was the other way round? Does your friend / partner deserve this?
2. Communicate your feelings constructively and without blaming the other person