Will have to agree to disagree on this one.
I don't expect Azlaan to fall 'in love' with Azka so soon but I do expect infatuation. Infatuation can happen within days to weeks and there are so many reasons for him to develop this infatuation. The circumstances are ripe. He has been devoid of womanly company for five years and here comes a woman out of blue into his life, home and sometimes room. She happens to be someone he hates only to find out he completely misjudged her. Not only is she different, she is the complete opposite of what he assumed her to be. She gives his mother a new healthy life, prays for her, ignites his non-existent faith, shows her greatness by not letting his mother know about her sacrifice so Sitwat does not feel indebted, is polite in all circumstances and so much more. She restores his faith in humanity within 1-2 days of marriage. Then there is the guilt of wronging and exploiting her. Additionally, there is a natural softness that comes towards a person who suddenly has the official label of your husband/wife. Finally, another man is trying to steal her and that is ought to induce some sense of competition/jealousy/loss. He has reasons galore. Once infatuated, that will lead to love in time (weeks-months-years-whatever) because they are in a relationship already, he has developed tremendous respect for her and he has no outside interests.
Azka, on the other hand, I do not expect infatuation or love from just yet and not even before the show ends. Now that would be unrealistic after having loved another man for 5 yrs. I believe Azka will choose to be with him and choose to fall in love with him over time (where as with Zain love happened without conscious choice). I think Azka will say yes to him for reasons other than love- sympathy, awe at his change, her desire to respect the institution of marriage and the feelings of a man who is now her husband. She is a girl of faith and would believe breaking her marriage when Azlaan is wanting to work on it would be going against Naseeb/God. I do not expect her to start loving Azlaan in days or weeks let alone confess.