Yes. It is considered as relapsing. This is called fantasizing, and this is the worst of all the enemies of a Fapstronaut. You've gotta stop fantasizing. Try to keep yourself busy. Meditate, and try to keep your mind calm and clear. Reset your counter and start again. This time, with more determination. Best of luck.
I wouldn’t class that as a relapse. Thinking about your ex is healthy fantasising as she is a real person you’ve been with not a pixel on a screen. Plus as long as you didn’t touch yourself then it’s not your fault you ejaculated
No, it is not a relapse. It's not an unnatural superstimulus like porn is. Fantasizing is normal. We've been doing it for eons and it has not been a problem. Besides it is not really something you can control that easy. And because it is out of your control, unless you're some kind of zen master, it's not really your fault. That being said, if you have some type of OCD then it can escalate to unhealthy amounts. But generally if you are mentally healthy person it's fine.
No, that would be like billions of men thinking of girlfriends. Total relapse? No. Very normal. Automatic little ejaculation sounds like spontaneous emission. Very normal And more common than you think.