Confused. Pls help a gal out😘

Soooo me and my boyfriend started dating in September 2016, we then broke up (or had a break) in March 2018 and got back together in January 2019. We broke up because we are long distance and at that time I was having mental health issues and the distance didn’t help me.

Basically I’m just confused as to how long we’ve been dating. Like someone asked me and I didn’t know what to say.

Like do we just count everything between September 2016-Now orrrr do we just start fresh and say we’ve been dating only since January???? It’s not a big deal but idk how to interpret it.