An accessory. An add on. It's not really a blame thing, but more of a role in the dynamics of a relationship. Here's an example- A good friend of mine was a man with a plan. He graduated from a good university and entered his field. Then started looking for women to make a family. He found a good one and married her. Then she had babies while he advanced his career. About 8 years later she hates him and they're divorced.
Why? Because she was an accessory to his life, not equal partner in theirs. She also had her Ba. in a good field which she started to pursue, but had to give up to become his wife/baby factory/house keeper. So it became all about one person and what the other had to do in support of him instead of what they both wanted and moved toward as a couple.
Its like clockwork in modern relationships the way that they self destruct, almost down to the moment.
So the question for you to answer for yourself is this- What is your modus operandi? Do you move in to town, find a woman and fill in space of time with her then move on, or are you earnestly looking for a partner to share your life and move forward with.
Like I said, not judging. That is more for you to answer yourself than anything.