Needed Advice

So my boyfriend of almost 2 years left for bootcamp 5 weeks ago, the total bootcamp for USCG is 8 weeks, I’ve been patiently waiting for a letter to come so i can write him to his return address. This morning, as I go to text him a little something in chat like if its a mini letter that I can’t yet send through mail, i find myself blocked. I go to another platform and I am blocked there too, and the same thing happened over 4 different platforms, the messages from the phone don’t deliver so I am guessing he also blocked my number. Later im looking through tiktok trying to get my mind off it i guess because it must be an error and i was thinking of waiting it out, the only comment section i open in a post the first comment, its him. I respond to the comment “what the hell” and later come back to the post only to find out I’m now blocked in freaking tiktok?. I don’t know why he has his phone, why is he blocking me, what did i do to cause it, honestly don’t know anything and it’s breaking my heart that I haven’t gotten an explanation. Any thoughts?