I've seen too many guys who save and scrimp for themselves, but buy gifts for their girlfriends that are beyond their means. Many people think it's true love, but they really haven't seen the true nature.

Men spend money on women, not just as a simple act of giving; there are three layers of logic at the core, each more brutal than the last.
The first layer is value projection: he's not spending money, he's proving his badge, projecting his masculinity, dignity, and success aspirations onto the gift. He loves the version of himself that can spend money on women.
The second layer is risk binding: spending money is like buying insurance for his sense of security, using sunk costs to bind the other person, numbing himself, and reducing the risk of being abandoned.
The third layer is container shaping: he's not buying what you like, he's shaping you according to his ideals; you are his creation, not the real you.
Stop measuring love by how willing someone is to spend money. Compared to expensive gifts, a man who is willing to give you his time, emotional support, and cognitive guidance truly wants to stay with you.