Hmm its always hard to say mate, especially cos i have never met the guy or know anything at all about him. Because youve been burned before your naturally skeptical, but if you keep on thinking negatively about every man then you may well miss your chance at having an amazing relationship and future with 'the one'. My advice to you is take it slow, dont completely brush him off cos of the past but definetly be cautious. Do you know about his past relationships, i.e more than one night stands has he had long term girlfriends?
Also be honest with him, tell him you want to take it slow because you have been hurt in the past but dont go into too many details or start slagging off your ex (his mate). If he is really interested and a decent guy he will be fine taking things slow and at ur pace until you are comfortable and know what move to take.
Hope this is useful to u mate, best of luck let me know how it goes xx
******* 7 Times World Champion Michael Schumacher - the ultimate sporting hero *******