To soon?

Me and my son’s father broke up on my birthday (April 21st) and we were together for 3 years he cheated and I refuse to keep allowing it (cheated before) but anyways the other young man has been very sweet and respectful when approaching me he knows I just left my sons father and he still wants to talk to me he has not rushed me into being with him or sex he just telling me that he wants to be my man and take care of me and my son I guess my question is am I wrong for thinking about allowing his new man to be my boyfriend to talking to him ? (I have never met this guy in person just talked on the phone texted ) what do you think please help I have all over the place emotions about it