I find this to be a poorly written and shallow article. I'm sorry to see Medium publishing and promoting something of this low calibre of writing.
Yes, when I am deeply in love with a man I do many of these things and they hold some accuracy as signs a man can look to as to the quality and depth of a woman's feelings initally. - or what I would label interest, certainly NOT 'true love' .
No woman is going to be one hundred percent consistent with all of these however, and if a woman has altered her behaviour and life in major ways to be with you - that is not a recipe for a love that will last.
Additionally, a love further along in its development, and/or perhaps a more mature woman, is going to be more balanced in ensuring her own goals and needs are met alongside yours. If the relationship has been built on her sacrificing acheiving her own goals in support of the man achieving his (which does still happen often), bitterness and resentment is the long term result.
In my opinion, true love is actually when our commitment to our own heart and journey comes first, and we pair and work that alongside someone else doing the same; when we are committed to witnessing the wonder of who they are no matter their outer actions and call them into the best version(s) of themselves along an absolute commitment to do that for and within ourselves firstly.