Ex boyfriend

Ar
So basically me and my ex have been talking again. I ended the relationship In the first place because he could not stop flirting with other girls. And it really hurt and we didn't talk or anything for two years and now we have started back up again and he was like my first love. But he can't make up his mind one minute he's like I love you we should get back together and the next it's let's just be friends??