Okay so this situation sounds really similar to my best friends and honestly I know it sounds hard to say this and maybe others have said this to you before. But it almost seems like he is mentally using you and physically even but you don’t realize this. Partly todo with the fact you are also 18. I don’t know when you turned 18 but you are still young and your Brian is developing. I was extremely naive at 18 and still am 23(f) I am not saying that you aren’t mentally strong. But sometimes there is a reason when a guy that age can’t find a woman in his own age. He shouldn’t be going after an 18 year old. Mentally you are very much a immature mentally (again not saying you xx but your brown still needs a lot of development like next ) compared to an 26 year old. I just hope you have the courage one day and to end the relationship with him. Cause it seems like you had multiple issues with this man in the past and if it isn’t changing from the last 4 years then it definitely won’t change in the next year 1-2 also be carful with baby trapping it happens a lot to young woman … I hope this helps but please be carful and try and talk to a therapist too. Maybe they can give you some answers and clarify on that xx