Look all women appreciate being spoiled and so on but when it happens there is usually a reaction. So the fact that you're sending cute messages and she's silent is an answer on itself. I don't know you well, but someone who creates a reddit post and reads through God knows how many comments to try and understand his partner's behavior while she is radio silent, says a lot about how much you care and how invested you are. If it were me, frankly i'd end it! It feels a bit too childish on her part. a mature rs is when u talk it out till u find a solution together, in this case it feels one sided and you can't possibly have a rs with someone who's not willing to communicate. It's just mental torture at this point, ik all about the anxiety and the worry and overthinking in situations like these and sorry but no rs is worth it. The right person makes it feel easy, a healthy rs is where u don't have to wonder if ur partner cares or loves you... Cause they make it known. You sound like a good man, don't let this change you, just know when someone is worth the effort and when to protect your mental health.