So my co-worker had this issue a couple months back, and I happened to have the same issue last night.
(Using the default text app)
I send a text to someone and it actually gets sent to another person.
Person 1 is supposed to recieve a message that says "Hi Adam".
Person 2 recieves the message "Hi Adam".
Person 2 is confused and replies back "I'm not Adam".
I get a message from person 2 saying "I'm not Adam".
I reply to the message saying, "I know, your Becca".
Person 3 recieves the message "I know, your Becca".
It does not send to the correct person until I restarted my phone and then my chat history was deleted up to the point when I first said "Hi Adam".
I was meeting up with some people for game night and asked them to show me their phones and they got messages from me that were ment for the other person. After the restart of my phone my phone shows that I sent them to the correct person, yet they never recieved the message.
Anyone else experience this issue? Any fix for this so I don't happen to say "Hi sweet heart" to my dad or brother? Thanks.