So several weeks ago I bought a second-hand Yamaha BB 5 string. When taking the strings off to drop some lemon oil on the neck, the nut fell off the bass. I tried putting the nut back into it's slot and securing it but it kept falling out. At this point I was quite annoyed that the nut wouldn't stay in. I grabbed some glue (Home Essentials Extra Strong), put a few drops into the slit and glued the nut in. After a while of playing (after the glue had already set completely) I noticed that when i was to be playing on the G string, the string would often slide off to the side of the neck. When I looked at the nut again I realised that the part closest to the G string is slightly off the neck. Not in line with the width of the neck. Basically, this problem is a big issue for me because i very much love this bass and I really don't want to have to buy another. However, this problem may be able to be fixed by using thicker strings (Currently using 40-125 gauge) which I would like to avoid as I like these strings.
Any help with my problem would be highly appreciated.
-Phonder