should i tell him the truth?

i goto a dental school...n i hav a huge crush on lecturer......even he likes me alot as a student,as a person.he even gave me pretty good marks,but he never mentioned even once that its because of him..he reallyyyyyyyyyy cares for me,always supported me n i share my every problem with him...........but lately one of his colleague started sendin me sms.....he knows im not at all interested in him,he even knows that i like his colleague.............but still he keeps sendin me those cheap messages,i even yelled at me sayin not 2 message me again,but he doesnt stop.........and i want 2 tell about this to my sir........please tell me what to do...should i tell him about his colleauge,i share everything with him and i feel that if i dnt tell him about this issue.i wud he cheatin him.........he is a gentle man.......im 21yrs old and he is 36yrs old .....and my education is is almost completed........so that fellow cant harm me..............plzzzzzzzzzzzzzzzzzzzzz advise me
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If you share everything then why you are not sharing this problem? because he is your sir's colleague no you should tell this to your sir because he is your good friend and i am sure he will believe you and not only that he will help you man come on just go and tell him he will and he should help you if he is you're good friend..... please don't think that you will not share this problem to him you should... go ahead and tell the truth. He will understand you..........
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