Honestly there haven't even been any scenes where Alekh has told her how beautiful he thinks she is...because she is...and it's about time someone says that about her with affection rather that repulsion...so she realizes that her beauty isn't a curse...
But I guess that shows that Alekh fell in love with Sadhna because of SADHNA...her heart...he fell in love with her heart...
However I was listening to Piya O Piya Saawariya from last year...the male version when Alekh runs away from home...and the song describes Sadhna as "sundar"...also I remember when Salekh had their second wedding...Ragini was dressing Sadhna and when it came time to put a bindi on...Ragini picked a small one and asked if Sadhna liked it...Sadhna said "Nahi Jiji, Alekh ji ko badi bindi pasand hai"...so she does care about what he thinks...she wants to make him happy...but he in turn loves her SO MUCH, he doesn't care what she looks like.
Really Alekh fell in love with her at the same time she fell in love with him...he never noticed her beauty back then..she just gained his trust and melted his fears...so he fell for her...and she fell for him regardless of his problems...
If you guys remember old Alekh...he used to often pick out saris for Sadhna to wear...based on his own choice...
Overall I don't think the Sadhna scenes were forced. It was a small issue for Sadhna, nothing glaring...she wasn't running away from Alekh...and she accepted his POV very quickly and that issue went away...and both were quiet ready to get physical *wiggles eyebrows*...😉