I believe that was the reason she came back 2.5 years back. But then the BPD behavior kicked in which took me over a year to realize. Her fears of abandonment (I will leave her...so she has to leave me first and stay in the security of home), emptiness, impulsivity and risky behavior, extreme rage, making me her guardian angel or her devil, mood swings, constant blames.
But in those roller coaster rides she has made promises couple of times - i will marry you because you are the man i love. my parent wont be around forever. i will be spending the life with the man i marry, not them.
yet at the decisive moments she has retreated and then blamed me for it. pretty much the whole story of last 2+ years.