No Contact Rule for Valentines Day?

Short story: Dated for a year have been broken up for 4 months. Mid December and all of January we went back out on dates and even spent the night together. We both said we missed each other now for the last 2 weeks he's ignored me and won't text back. RARELY. I'm always the one initiating contact so tired of feeling desperate and clingy. I have implemented my no contact rule. So what's his deal? should I do or say something for Valentine's day or should I just go about my business?
No Contact Rule for Valentines Day?
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