Ex-SD sent me flowers on V-day

This is NOT romantic or sweet in any way. Unfortunately our arrangement ended bad. He was starting to act like a clingy boyfriend despite us not ever being exclusive from the start and he knew that. It's been a month since he was blocked everywhere and the last thing I told him was to stop contacting me. I was getting some creepy stalker vibes from this guy too so another reason why I ended it. Even when we're no longer together, he still continues to disrespect my boundaries. I'm literally so creeped out. I'm scared he'll just show up to my home.