My friends can

Ive been close friends to two people at work and even out of the office for 2 years now. BUT althroughout, I cant help but feel left out whenever were together. I was bestfriends before with one, but ever since the other one came along, they became more close, and cant help but feel jealous and left out by the both of them. I also have bipolar disorder, and the constant feeling of being left out stresses me which led me to depression. I recovered from it 4 mos ago and they know I have that disorder and have been open about it.

Until i made this mistake: one day i cant take it anymore about them leaving me out and I just stopped talking to them. Ofcourse they felt something wrong and they got mad that I was okay with other people but with the two of them, I just ignored them completely. It only lasted for a day and the next day, they started to get hostile and I felt sorry about it and made an effort to make up; tell them how sorry I am. I felt okay after I did it, cause they said in text they forgave me and everythings fine, but apparently they dont talk to me or even look at me except when I try to talk to them first. They talk to me politely but retreat to being distant afterwards. I got tired and had a whole new set of friends to be with and started to just be non-chalant and pleasant with them. But tell me this: should i drop them out completely?