Not every girl is out to get another man's money, haeso is so used to being independent and earning her own money that she ends up spoiling a rich person thats why he finds it cute because he could buy millions like that for her in a heart beat but she works really hard to atleast get him just one once in a while haha love is funny that way.
I get what you mean but you're very loud and wrong this time lol
First, Na Hae Soo don't need someone's money. It's clearly stated she's independent and will never ever rely on someone's money
Second, if Tae Ha spoils her with his money she'll literally become suspicious lol. His acting cute and weak was the whole point so he can get hae soo. If hae soo knew he's a chaebol she'll avoid her and boom no story
From what I remember, Taeha had used his financial resources to replace Haesoo's worn-out wardrobe.
In a notable interaction, Haesoo visits a shop to buy clothes for him, only for the dynamic to flip. In that chapter, it is suggested that Taeha "arranged" for prices to appear lower or discounted so Haesoo would feel comfortable receiving his gifts.
Taeha has provided Haesoo with clothing and other items, often using subtle or "sneaky" methods to ensure she accepts them without feeling burdened by their high cost.
Taeha has given Haesoo items like flowers and accessories, even though she is often unaware of their true value or his actual wealth.
I don’t think he does it not to spoil her though— let’s keep in mind that Taeha has been observing Haesoo for a long time and is deeply attuned to her needs and suffering. Taeha recognizes that Haesoo has been neglected and financially burdened by Mincheol. It seems him buying her new clothes is a way to acknowledge her value and help restore her self-esteem and also rather than solving all her financial problems at once, he expresses his affection through small gestures that respect her autonomy. Despite her crushing debt, we all saw how she is reluctant to let others solve her financial problems and worked multiple jobs to pay off debt incurred by Mincheol, showing a deep sense of responsibility and a desire to avoid being "beholden" to anyone.

HE’S THE ONLY RICH ML WHO DOESNT SPOIL HIS WOMAN LIKE WTF ARE YOUR MONEY FOR