I am always asking you for advice on men because I respect your opinion and I think that your advice is really good.

I recently told you that I slept with my male friend, he really does like me and has told me this but he says that he doesn't want a relationship (he told me this a month ago).

The thing is he won't let me go and doesn't care if he sleeps with me and when he sees me in public he treats me like his girlfriend and is affectionate, he approaches me first and stands by my side, he holds my hand and kisses me on the face.

This demonstrates he is proud of having you as a girlfriend and wants to show you off to everyone.  It's certainly not a sign that he wants to let you go, it's a sign that he really values you and depends on you to be with him. 

All of his friends treat us like we are a couple and lately they can't do enough for me! He gets very jealous of other men around me and we seem to be going down the relationship road, his ex slept with his friend last year and I don't know that is the reason that he is weary of relationships.

The fact that he is wary about you with other men, reinforces the fact that he is very possessive about you.  Add the point about his ex-girlfriend and that explains why he is wary about you and other men and why he seems to be cautious about saying to you that the relationship is serious.  A guy whose been hurt by a woman like this, will be expecting it to happen again and will want to keep an eye on you all the time to make sure you are not straying. 

I want to bring this topic up about 'us' but I don't know how to say it to him, he has changed towards me in the last few weeks and is treating me like his girlfriend and not just his friend, he isn't seeing anybody else and doesn't intend to.

I think he just needs time to trust you and realise you are not going to go off shagging one of his friends.  Once he trusts you his verbal attitude towards you will improve.  His body language attitude towards you demonstrates that he really likes you but his mind is playing safe.  By playing safe I mean, his mind is saying "she doesn't fancy me too much and she's going to run off with someone else, so to save me from the disappointment, she's only a friend that I have sex with.  If I explain that to my friends I won't look a fool when she runs off with that other person".

There was a woman he fancied for ages and it's like she doesn't exist anymore to him and he doesn't even bother to get into conversations with her, ever since me and him slept together.

That shows a sign of wanting to move on.  He's got you now, you are good enough for him and he's not going to let this other woman be on his mind.  He needs to wipe her out of his mind and start afresh with you and the best way to do that is completely ignore her.  Hopefully she won't come running to him and trying to tease and tempt her way back into his life.

Another thing he didn't reply to a few messages that I sent him (I took it that it was because he said that he didn't want a relationship) and when we saw each other the other day he was apologising to me and really saying how sorry he was for not replying and lately he is always saying sorry for small mistakes he makes, asking if I still am talking to him or ok with him, so I have to reassure him that it's ok.

He is keen to stay on the good side of you, he doesn't want anything to spoil things.  Sometimes guys do get a bit carried away and fail to reply to messages.  Sometimes it's because women have written the messages in the wrong way, other times it's through guys not thinking properly and remembering their priorties. 

He isn't giving me mixed messages it's just that he said that he DIDN'T want a relationship, could it be that he is changing his mind?

I don't think he's changing his mind.  I think he always wanted a relationship with you.  The thing that he's done is tried to play safe by saying he doesn't want a relationship and convincing his own mind that is the case.  But the reality is, he really does want you and really does like you, but he daren't say so, in case you run off with someone else.  He needs some security in your relationship for a few months before he can be comfortable in saying that he wants a relationship with you.  That way he knows you are not going to make a fool out of him and get off with his friend or brother or whatever other nasty tricks some women try to do to a man.

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