If you want something edible its best to learn to devein it. In brief the process is:
1. Pull apart the big and small lobes. On one end they will stick together be attached and crumble a bit, we'll call this the top.
2. Starting at the top of the small lobe, follow the vein down and pull it through the middle of the lobe. The small love is easier.
3. Do the same with the large lobe. The large love has an upside down "Y" shaped vein that makes it a bit tougher.
4. Remove and red or green spots by cutting them away with a knife.
When deveining you can use a knife but I really think its much easier to just use my hands. Take your time and you'll still have something usable when you are finished.