Relationships!!!

[megggggg]

I need some help. I seen some messages on my boyfriends phone he keeps sending her messages for no reason (granted it's just messages about music etc)
but at 11pm at night he sent her a messages about listening to a song, the song is supposed to be our favourite song.
I just don't get why you would need to keep messaging this girl and his excuse is he's known her years?
to message a girl at 11pm at night in my opinion isn't just nothing(
am I over reacting? Or have I reason to be annoyed.

I wouldn't. I would class this as disrespectful to my wife.

It's just so strange. And it's made me genuinely upset baring in mind I poured my heart out the same night saying I'd marry him and I finally feel settled after an awful 8 year relationship

Who is she? If she's a good friend of his I'd have expected to have met her already. Have you asked him how he'd feel if you were constantly messaging a male friend?