Hey guys. This is my first post on here and need some advice 

there's a girl that I met two years ago and immediately fell in love with her. We worked together and used to see each other everyday and talked a fair bit. I was unable to do anything about it as I was already in an arranged relationship but it was already on edgy rocks. 
Then in feb of 2018 my relationship fell through and I thought this was the time to act on my feelings and ask this other girl out. Unfortunately she decided that she as going to leave the company we worked for so I thought this would be the time to ask her. I asked and she told me that she didn't want to do anything and the timing wasn't right. I said ok and asked if we could remain friends to which she said she would like that too. We carried on talking at work but outside things quitened down. After two weeks, once her new job was confirmed she asked me to apply to the same new job in the same team. When I asked her if it would look weird she said who cared it would be good so I did and got it. She then asked me if I wanted to live together and split the rent bill and most things as it would be cheaper. I agreed to this too. We moved in and for about 4 months things were a bit rough. We hardly talked or did anything and there were multiple reasons for this. She even got interested in another guy and had a few dates with him. Then suddenly unknown to me she just stopped talking to this guy and got closer to me. We did most things together like cooking, eating, going to the gym, washing our cloths together everything. Then as things were getting really good this COVID hit and we went back to our respective homes and gave up the house we were renting. 
since March we have spent over 5 hours ever day on the phone during work and talking about everything while doing work, helping each other, talking about personal things as if we were still living together. We even in august went to Amsterdam together to get tattoos and stayed in the same room. But she's now getting closer to another girl friend of hers and things are going back to her taking forever to reply to my messages. Lying to me about small things and talking less and less. This girl is my everything and I have been holding off asking her out again as I love her company but I'm getting to the point where she's the only thing I can think of and it's eating me up on the inside. Is she just using me for work and not my friend, or is there something to work with here and something that I can try. 
please please please somebody give me advice and help me. Sorry for the long story and I will be happy to answer any questions if it will help. Thanks in advance.