Ex coworker stalking me?

So to start off...I got a random text message in JANUARY of this year. Justin is my husband and he has never ever given me any reason to believe he cheated on me. All of his exes actually cheated on him and he despises it. We're very happy together. So of course I have spent all year worrying over this message. Even back in january I had a gut feeling that my coworker had something to do with this message (used a fake phone number generator to send it to me). But I was never sure and it really stressed me out thinking my husband cheated over me. This is the message

I let it go and have somewhat moved on because I feel that if it was really a women sending that to me, she would have made sure to expose him because her relationship was ruined

Fast forward to october this year. My coworker got fired for drug use. It ended very bad and he was causing a huge scene when they fired him. So he very clearly has it out for my manager.

I recieved this text message last night. Chris is my manager

I thought it was real until the second screenshot where my ex coworkers name is mentioned. It's the same texting style as the first message I got in january.

Then a SECOND phone number messages me last night

I started to get a very strong gut feeling that this is my ex coworker because of how negatively he speaks about my manager in these texts. It's all the same texting style in all 3 phone numbers.

Heres a screenshot of messages from my actual ex coworker from his real phone number.

...what would yall do in this situation??? This guy is sitting at home at 2 in the morning, thinking about ways to get me in trouble. He tried to break up me and my husband in january and now hes trying to stir shit up with me at work. I'm afraid and I feel like he could potentially do worse. He KNEW I would be awake to read those messages because he worked on my shift. I feel so stupid for jot realizing until now, but he also followed me home partially one day after work. I saw his truck behind me for a little bit until he turned off a different way.

His marriage is falling apart because he cheated on his wife last year and now hes just lost his job and for some God forsaken reason, hes got his targets on fucking with my mind. Idk what to do.. I know hes the culprit behind these messages because him and I had some bad arguments at work because he is very chauvinistic and manipulative and I called him out for it... w

Wtf do I do