I am a 47yo single gay white male who has been in relationships before but currently am not in one... What is hurting me now is having to deal with my desire to hug and comfort him and my need for him to be close to me... I recently met another fellow who I became very intimate with upon first meeting... I really need to deal with what is happening in my relationships and the loss I am feeling by his mother's passing
Your post is contradictory. You say you are not in a relationship, then talk about your boyfriend not being physically comforting enough to you as he was dealing with his mom's illness & death so you found someone you immediately "got intimate" with whose leaving for his job.
Does your old boyfriend know the relationship is over, because it's not clear that you broke it off with him? Or that you cheated if he thinks you guys are still a couple? Even if you had an agreement to have an open relationship, the fact that you had sex with someone else a few weeks after his mom died because he was not putting out isn't going to exactly be news that makes him rush into your arms for comfort.
You do need to deal with your relationships & it sounds like you are stuck in a rut of "what's in for me?" which other than casual sex isn't going to be anything but a bad foundation for true intimacy which does leads to consistent physical closeness at a level you are seeking.
If you keep acting selfishly you are going to be very much limiting or flat out eliminating any deep relationship & will find even a bigger lack of closeness physically or otherwise. Your post is all about you with a marked lack of empathy or understanding for a partner you have been with for a while (not clear exactly how long that has been). Instead of trying to ease his burden & grief, you went out & found someone to make YOU feel better for the moment.
Dealing with the death of parent is a very hurtful, time consuming thing to have to handle, so it's not surprising he has not been interested in being physical or give you assurances about the relationship at all during this time. You didn't give him much of a chance to deal with his exhaustion or grief over his mom's death before deciding he doesn't really want to be in a relationship with you & finding someone else to play with. That is some stinkin' thinking & may not be true, he may just be too overwhelmed to deal with much until he gets a bit more than a few weeks past her death.
It sounds like you may be depressed which is manifesting itself by wanting to be physically close to others at all costs. You may want to talk to a dr about that to see if some med's could help. That can aid you put things into better perspective. Depression makes everything seem as worst as possible & makes the lows feel overwhelming. Have you had a problem with depression before?