He either wants to confirm to himself that he made the right decision in breaking up with you, boost his ego by seeing that you still like him or fill in the gap between relationships.
You have to go and meet him in order to discover what he wants, be it through his words or his body language.
He probably wants to surprise you.
It sounds like your boyfriend wants to have a serious relationship. If you want this as well, arrange a time for this meeting. If this is not what you want, discuss it further with someone (like your mom or dad, or a guidance counselor, therapist, etc) for further advice.
When you want to and when he wants to
He probably wants to see you 'long time no see' or he is probably missing you, wants you back or wants to be friends (they are many more reasons) if your not shy ask or you could always say 'no'
It may indicate that he wants to have a private and intimate conversation with you, where he can openly share his thoughts and feelings without any distractions. It could also be a sign that he wants to discuss something important or have a heart-to-heart conversation with you.
If you want to, and he wants to, then you should do it.
If you also want to meet then go ahead and meet.
Pay attention to his body language. If he leans in towards you, makes eye contact, or smiles, these are all positive signs that he may want a hug. You can also try asking him directly if he would like a hug.
You just tell him
yes she does want to marry her boyfriend because she is telling her friends that she wants him to be her husband!
Questions you should ask is why does he want to harm your ex.