Only wrong thing he did was declare ragini his fiance yet he only did that so ragini comes to his house to look after his brother so he recovers
His feelings for swara and non feelings for ragini have been clearly evident from the start.
How do u mean once a traitor always a traitor? When has he traited anyone on purpose?
Circumstances like ur brother returning and getting attached to ragini and won't go anywhere without her made him take that decision.
Only thing he shud have done was talk to ragini alone and tell her his reasons for saying such a lie.
Yet why is everyone making Lakshya feel like the bad guy for wanting to help his brother and loving Swara?
He is going to get Swara with her reciprocating his feelings and I don't see any other conclusions.