Your ex texting and calling you, and taking care of you doesn't necessarily mean he wants to get back with you.
But again, it might be an indication he wants to get back you. This is because you don't text or call him. Maybe he feels guilty of breaking up with you which might explain his actions.
Also, his actions signify he has feelings for you. He misses you. He loves you.
It's too early to know. If his actions continue for several weeks, it's a sign he wants to get back with you.
However, before the two of you get together you need to solve the issues that led to the frequent fights. If you don't, the relationship will be faced by problems and possibility of another breakup.