Ok, well the good part typo is that you recognize that and now you have something to work on. And with a bf that has given you so much love and understanding you both can have a talk and work on trying to head it off before it gets out of hand.

To be honest typo, that was what you missed in your history. When we are growing up we are designed to learn when we feel unsafe in some way that a parent will help us address this with comforting soothing words and affection. So we gradually learn about calming down soothing and safety. When that is not there we struggle to learn that somehow and what can happen is what you experience, that inability to somehow keep uncomfortable feelings from escalating. I have to work on that too typo and now my husband helps me with that and it really does help.

So considering that your bf is suggesting therapy and he feels that would be good for you, well that is really nice because he is willing to be there while you get help. So, you and him COULD start by seeing if you can establish a safty signal where he takes that place of the soothing supporting parent you never had. And the goal will be to allow you to learn slowly to get to a point where that safety signal can be used less and less. And that is important because you true goal is to slowly gradually learn your OWN self control and NOT to become completely dependant on him, remember that ok? Because you do not want him to think that you will be totally dependant on him ok? Try to show him some improvements in gradually slowly working this troubled area through.
Good Luck, give it time it make not be perfect at first.
Open Eyes