There are zero issues with consent. It is a chatbot not a living or sentient.
There are zero issues with STDs or pregnancy scares.
No one is going to want this as a substitute for a real relationship and if they do you might be doing the world a favor by allowing them a way out of the datingpool.
Sure it could be used for honeypots but we have had that for pretty much all of history. People fake affection or who they are to get what they want.
I just don't see how this is at all different than the forms of erotica we already have and society has adapted to.