"Even split between us, this will pay way better than the Jumanji sponsorship I came into the date with."
This comic is a spoof of Internet influencers. These are people with large social media followings who mention products in their videos in exchange for payment from the companies that produce these products, as a form of advertising.
In the comic, Megan and Cueball are not intentionally live-streaming their date, but someone around them is uploading video footage of their date, because they were having an argument about the movie Jumanji. Megan realized that they can capitalize on this by getting a sponsor.
The argument then shifts to whether they're going to sleep together after the date. Cueball says he won't go home with Megan because she doesn't have the mattress brand sold by their sponsor. She responds by pointing out a feature of that brand: their same-day delivery policy. This argument could easily be a TV commercial for the mattress, though Cueball's ultimate retort suggests (whether he wants it to or not) that there still won't be a "happy ending" conclusion to this play-acting, either fictionally or once real life resumes.
The title text hints, however, that Megan was already before the date going to promote the Jumanji franchise, for her own gain. Megan's realization that she could not discuss this subject since Cueball had not seen it leads to her initial reaction starting their date to be shared, but not for the reason she had anticipated. But then when she sees they are still going viral, she is ready to use this new situation to bring in a lot of "mattress money". And as it turns out even when splitting with Cueball she will earn more. Since Cueball presumably came into the date with the intention of finding a romantic partner rather than gaining a sponsorship, he will probably get even less happy with Megan. Alternatively, as he plays along with her in the last frame, he may see this as an acceptable or even preferable arrangement (considering that the date wasn't going all too well in the first place).