I've been with my OH for several years, though much of this has been long-distance (not crazy distance, but 2 hours ish.) We've had our issues in the past, but things have been mostly good till recently.
My MH really got hit by the pandemic. I was once very nearly violently attacked, and had felt I was over it, but I think all this time in the house has sent me slightly agoraphobic. I get very fearful when out on my own, even going to the shops. I constantly worry, in a very OTT way, about the likelihood of being attacked. Get the bus to the gym etc 'cos I can't face walking there.
I don't know if this relates to how I am with my partner, but I've become very clingy with him. I really want him to move to London to be with me. It's tricky for financial reasons for him, but a few months ago he was quite keen, but seems to have gone off the idea a bit recently. I've suffered two job losses due to the pandemic, gained weight, lost social confidence. Even though I was in a job I hated before the pandemic hit, I was having a great time with friends and colleagues, nights out, theatre etc. My bofriend has pretty much become my only social contact since Covid hit, which I know is not good, but I can't do much about that.
Examples of my clingy behaviour:
Begging him not to leave/refusing to let him leave when he needs to go back for work.
Ringing him a few days after he's left asking him to come back immediately.
Getting drunk/tearful whenever he is with me because I can't face the thought of him leaving again.
Reading this back, I know I sound a nightmare, but I've got to a stage where it occurs automatically. I never used to be like this, as I'd miss him when we were apart, but I'd also have fun in between and happily fill weekends with friends and hobbies. I do feel if we lived together I'd be less clingy, as the thought of him leaving wouldn't constantly hang over me.
However, this is more than my relationship, I think. I really want to get the old me back - the me that would have been more clear headed and actually valued my independence and life outside the relationship. 
But how when it's become a pattern?