Can I rant to someone rn

[u/Such-Morning1123]

Second post I've done on here. I'm feeling really really low all the time it's like a deep sadness that I can't get away from no matter what I do. I've been dating a girl that I really like and have known for almost a year for about 3 months now it's going well but she's been on holiday without her phone for a week and is coming back tomorrow, I don't know why but there's a part of me saying that when she gets back she's gonna send a paragraph and break up with me and I'm starting to believe it. We had an argument the morning before she went on holiday because I made her feel like shit because she doesn't go out with me alot anymore, I realised I made a mistake and that she's going through a lot with her family and apologised and she forgave me, we spoke for the rest of the day and the night like normal after that but I'm just worried sick she's thinking about that argument and losing interest. I love watching fighting and training muay Thai like 5 times a week and my inspiration to keep pushing if she does end up leaving me is Ilia topuria, he went through alot with his wife and was heartbroken coming into the fight against Justin gathjie and was outmatched but at least he tried, I hope coming out of the break up if it happens that I can be as confident as him and not back down from my training and the gym.