I have read all your questions taraprincess.
I can see you still are very bound to your ex and this will prevent you from finding new love.
You say he left you sudden but that you still have contact with him.
When 2 are in love and will build a good relationship, then trust is one of the main pillars.
If you have reason to believe that he cheat on you, then in my opinion you have no solid foundation for this relationship.
On the other hand if you are a "jealous" person, then you have to work on yourself.
It can be seen as a illness and it shall be a strong love from your partner in order to cope with it.
If you are jealous, then you take away the trust and then you remove one of the pillars.
So my best advice must be:
If you and your friend still are in "love" ask if it is your jealousy that make him leave, ask if he will try on a new term if you promise to work on this and replace it with trust.
If jealousy not is the case, then accept that he haven't the feelings for you that can give a good and long relationship.
Try to accept this and start to be open for other partners, it's always hard to let go....but you have nothing to gain to sit and hope...and with your uncertainty about him and other ladies...you only hurt yourself for nothing.
Good luck to you
