I think throughout the show, we saw her love for him change in many ways. At first, she was this possessive girlfriend, but really did love him - she always stood by him, no matter what Aryan said, and always backed him on everything. I feel bad for Malika in the beginning b/c though she loved him, I don't think Armaan ever truly loved her in the same way. I think he was just accepting the fact that he was to marry her - but always went looking elsewhere for true love (and might I add - in the wrong places...).
When she saw Jassi and Armaan getting closer, she became even more possessive, and she perhaps began to see Jassi as a threat - she saw her Armaan slipping out of her hands. Was this fear linked to the fact that Armaan was her only connection left to the Suri family? Though they treated and thought of her as one of their own kids, did she think that if she lost Armaan she'd lose her family too?
In the end, I think Malika's character took on a similar shade as Purabs. Acquiring Armaan became a big game for her. She never could accept that Jassi was in possesion of Armaan's heart. She was never happy with the fact that Armaan was happy with someone else. I don't know if she still loved him or not at the end. I think she was just obsessed with the fact that she had to beat Jassi at this game of winning Armaan. I think somewhere, somehow, her love for him turned into anger towards his "bewafaai", and that led to this completely different personality that had to get revenge. But even then, she never meant to hurt Armaan - she wanted to hurt Jassi for taking her Armaan from him. In the end, she hurt Armaan unknowingly...
Even when they were married for that short time, she knew that Armaan loved someone else, but still, she lived with that, and tried to make the marriage work. It was Armaan's own fault that he married her out of anger - she didn't deserve at all later to be insulted by Armaan the way she was.
To answer my own previous question, I think she really did love him. Her love however, turned into an obsession, and then got the best of her. She was unfortunate to have made some stupid decisions and she was selfish in her love. She tried to hold on too tight, and therefore caused it to slip out of her hands.
Upon reflection, I feel bad for Malika. No matter where her love stemmed from, no matter what her reasons were for trying to hold on to Armaan, no matter what stupid decisions she made - despite it all, she loved him...but perhaps not enough. Jassi loved him more as she was ready to let her love go. Malika couldn't do that - she couldn't make that sacrifice. It doesn't mean she didn't love him...as I said before, she was selfish, and thats probably the only reason Jassi won in the end. She just couldn't love him as much as Jassi did....
Sorry that was so long - had to get my thoughts out! :)
Love,
~Payal