This was my alibis and reasons for my ex gfs:
1. My parents don't want me to have a relationship yet, I must finish my study first. Sorry about that. There's nothing I can do.
2. We are too far from each other. It'll be hard for u so I will sacrifice our relationship for your sake.
3. Someone stole me from you. Im sorry.
4. Let's be friends again, we can't understand each other all the time.
5. -------------- (no reasons, I just went away)

I'll post later the reasons of the rest of my ex gfs' alibis or reasons to me