Thank you for posting your question here, I will try to answer it to the best of my abilities.
Yes it is possible to break your hymen
by fingering, but in your particular case I think your boyfriend was a little rough with you that is why it still hurts. So tell him to be gentler next time, you should be back to normal within a couple of days. Just give your body sometime to heal.
If for some reason you keep bleeding and it doesnt stop, see a doctor right away.
I hope this answered your question.