- Invite her.
- Don't invite her, it will be awkward if you break up before the party.
Most Helpful Girl
Why put a damper on the Party by being a Party Pooper?
Invite her.. You both have been in this long term relationship for a long time, and by Inviting her, shows Respect, and perhaps as well, you both do share the same friends here, dear.
However, when the lights come back on and the lamp shade is returned to its base, then decide When to cut the ties and say The party s over to her face.
If you both end up friends, then this would even be a party favor in your birthday hat.
Good luck and happy birthday. xx
Most Helpful Guy
Break up before your party since your party seems that important.