Some Maria Feodorovna`s contmporaries said that she was inhereted like a crown and tht it was a totally arranged marriage and that Alexander was forced into it and Dagmar wanted to become tsarina. of course, marriages at european courts were govrnd by thir rules, and heirs to the thrones did not have much freedom BUT
in case of MF and A3 we can talk about real feelings.
after Nixa`s death Alexander 2 wanted Dagmar to be his daughte -in-law that meant that she would have to maary his second son. she, however, did not rush and was very considerate in her letter to Alexander 2 " I`m so pleased to hea that you wanted me to remain at your side. What can I say? My loss is so recent that I`m afraid of showing mu lack of loyalty to Him. Also, I `d like to hear this from Sasha :does he really want to be with me because never ever would I like to be the reason for his unhappiness. His misery wouldn`t make me happy, either" Dear Papa, I do hope you understand what I mean. But this is how I look at this situation and it`s my duty to tell you this honestly".
it follows that she was very considerate towards alexander, and she was loyal to the memory of her late fiance.
I think she DID fall in love with alexander later. in his diary,after the engagement, she left the following poem
THE FLOWERS SILENTLY WHISPER
ABOUT THE MAIN THING IN MY LIFE-
I HAVE IN MY HEART
THE JOY AND PAIN OF LOVE.
she was not as ambitious as to rush into marriage with the rich heir to the russian throne...