Engaged guy says he still loves me but goes cold—what should I do?

I was chatting to this guy for over a year. We fell in love with each other or so I thought. Whilst we were talking he got into a relationship with another girl, fast forward to this year he has now got engaged to her around February this year. He has messaged me a few times telling he still loves me and then recently telling me he still wants me. Im confused as I still have feelings for him but I dont know what to do? Do I keep being friends with him as thats what we were before we got feelings for each other or do i choose to cut all ties with him as he is giving me mixed signals telling me he wants me and then going cold the next and not replying to my messages.
Updates
3 h
Just to add we did arrange to meet up a few times when we were talking but it never happened not sure why on every reason can't remember now. We spoke on the phone like 3 or 4 times a week not just messaging
Engaged guy says he still loves me but goes cold—what should I do?
Post Opinion