PLS, MY FRIEND NEEDS OUR HELP. (Page 3)

Please guys i need your help. there's a friend of mine who has a little problem with his girlfriend and he needs advice but i don't want to rely on my own advice alone.
He has been dating this particular lady for about 4years now which has been good but of recent this lady's behavior is putting him off.
1) They had planned on getting married which their families are aware of.
2) This lady is presently on youth service and he said he can't cope with the number of men who are constantly calling up his babe and sending her text message to express their love for her which she doesn't care about(i mean she's not showing them signs that she's in a relationship)
3) My friend said he can no longer call her at night cos she's always complaining that she's too tired and can't take night calls.
4) Of recent, he said he noticed that she had changed his name on her phone and also his special ring-tone.
Could this be mere coincidence or is this lady trying to tell him that he's time is up? Anytime he confronts her about her readiness to continue with the relationship, she's always saying yes but my friend feels otherwise.Plus there are other ladies begging him for a relationship with them.

Pls, we need your advice cos i wouldn't want him to make any decision that may seem ill-timed. Ladies in the house, i  need your responses pls!!!!!!!!!!!!!