I feel like I want to cut again.
Do you mean cut yourself?
Yes, because I'm in love with my boyfriend, but he doesn't care about me much. I wish I was not in love with him.
You shouldn't self harm because of someone else. You should seek therapy so you can better manage your thoughts.
I wish I was not in love with him. Maybe it's caused by my childhood trauma. They told me in therapy that falling in love would bring happiness.
Please stop cutting yourself and talk to someone about how you feel. You can't force someone to fall in love with you and you need to realize when things are out of your control. Look forward to other opportunities to soothe your troubles.