Received a lunch cooked by a female colleague.

When you first came to the company, it was not that no one noticed you, but many people, especially the opposite sex, kept an eye on the dynamics of new employees. If you have excellent academic background or excellent work performance, there will be bold heterosexual actions to pursue you immediately, such as giving you a box of homemade lunch at dinner time and serving it as soon as you are sure. This is also normal competition. If you like this female colleague, go for it, maybe you will find your peach blossom luck.