You should not have to do anything about your back hair. If you get rid of it while you meet a women you will have to keep doing it to hide the fact you have a hairy back. She should accept everything about you.
This is something that you could do if you want, but eventually the topic will probably come up with your future girlfriend or wife. Just be honest with her and she may not even mind it.
i would say yes you need to take those steps. it mainly depends on the back hair. if it is thick and very easily seen i would say 100% yes remove it. if it is light and not to bad u could leave it. also depends on the lady
Back hair is very unattractive to most women. You are absolutely right to think it is gross, although there are some people who have an affinity for back hair, calling such men "bears."