Do you have specific values/beliefs that you NEED a bf/gf to agree on in order for things to work? What are they?
For me, I needed my bf to understand and be ok with the fact that I will never be a stay at home mom, and that my career is as important as his. He's on board, but a lot of his friends think its the wrong way to raise kids (we'll need/ use daycare). So for me, thats a make or break issue.