I have know a guy for around 2 years now, he was my ex-boyfriends friend (not a close friend though). My first impression of him was that he was immature and a pain in the bum. Throughout the first year of knowing him, it became clear that he fancied me as he would flirt outrageously and be very touchy feely. Eventually me and my then partner broke up after 3 years, quite messy too. I stayed in touch with his friend by text message. Over the last year ive known him, ive really fallen for him and have a totally different opinion of him. Hes kind and gentle and makes me laugh everytime we speak.

It sounds like a relationship with good potential.  If he is kind, gentle and makes you laugh.  And the fact that he has not given up on you after several years is a very good sign too.  Most guys would have just given up, especially if they weren't too interested, but he has persisted.

My ex found out that we were still in touch and went mad (dont know why) but this hasnt put me off.

Well ex-boyfriends always tend to get jealous, if they find out you have a new boyfriend, but the fact that it is one of his friends will really annoy him.

Ive slept with him a number of times and stayed over for the night at his place. Nobody knows about this. The feelings I have for him are so intense, i feel elated just thinking about him and i have strong feelings of love for him. At the beginning of 2006 I found out through lo! cal press that he was in a horrific motorbike accident and was in a coma for 2 weeks, he nearly died. I was so upset I had to took a week off work. Hes on the mend now.

That would have been really precious to him, you being there at a bad time to comfort him.  He will really appreciate that, though as a man, would probably not tell you how much he appreciated it.

This has made me realise that I am in love with him. I stayed at his house at the weekend and met his father in the morning. I just feel an overwhelming sense of wanting to be his proper girlfriend and look after him.

The fact that you stayed at his place, and the fact that he introduced you to his father are very positive signs.  Guys who are not that interested will avoid introducing you to their parents.  Some guys will avoid introducing you to their parents until they definitely know you are the one.

We're both very strong characters and i think this would just add excitement to a relationship with him. Now his bad points, he is well known where we live for being a jack the lad and having a string of one night stands under his belt.

I think this can be discounted in your relationship.  Because he pursued you for a long period of time, without getting any sex at all.  So although one night stands are a bad thing, it certainly doesn't sound as though he wants a one night stand with you.

I thought thats what I was when we first slept together, but he texts me nearly every day asking what im up to and if i want to go to his.

If he texts you all the time, and is interested in what you do, that is a sign that you really do matter to him.

Now, from an outside view, would you say im being used as he knows i like him and will always stay at his when he asks, or do you think there is something more there on his part, he may want a relationship with me but is worried about my ex.

All the information you have given me, has been positive.  So I see the potential for a long term relationship there.