My ex...

So I made a post about how I’m 16 and I saw my ex for the first time in a year & we didn’t talk just made eye contact with each other but I lost my v card to him and I have an amazing bf of 8 months BUT I CANT STOP THINKING ABT MY EX NOW AND I WANNA TEXT HIM BUT IK THATS A BAD IDEA! Ugh idk why I’m feeling like this! Why? Why this random urge? I guess I feel like things in my relationship now are kinda plain and I miss messing around and goofing off like when I was single? My boyfriend is great but idk why I’m feeling this way. Please give me some advice!😫

UPDATE: I pretended to accidentally send him a streak on snapchat... is that bad?