Iris....it is understandable for you to want these things. They sound like normal human needs, to me. With the depression...it sounds like your self esteem is on the bottom of the barrel ….this is a part of the depression..or, depression certainly makes it sooo much worse.
You were realistic to think that your bf was not a good person for you. He couldn't/wouldn't give you what you need. But, that, in no way devalues ypu or his son. That is on him--not you!
Feeling guilty and inadequate and crying continuously are cardinal features of depression.
The things that you wish for...having someone stay with you and having someone who understands and gives you a hug are quite doable, if you contact the right people and let them know how you are feeling.....not the ones around you right now, or your family.
Most people won't understand, if they have not been in your shoes....
People who are specially trained and educated and in positions to help are the ones who will have great understanding....