<human>: Could you distill the essence of the text into 1-3 sentences?

My roommate Jills boyfriend (24M) of two years just dumped her and she's having a really rough time with it. I've known Jill for awhile, but we've always been more fun friends than "serious emotional support" friends. I don't mind trying to be that for her now, but I'm just not very good at it. 

I'm not a very touchy feely person and I'm really awkward about physically comforting someone. I've never been dumped, I've never been in a relationship as serious as hers, and I feel like I have absolutely nothing useful to say other than "that sucks" which has gotten a bit repetitive at this point. I feel like I make it worse when she comes to me crying and wanting to not be alone and I just sit there like an idiot and don't say anything because I'm blanking. 

She sometimes wants my advice and I do my best but again, I have no real relationship experience of my own to draw on and I don't know what the fuck I'm talking about.
<bot>: What are useful or compassionate things to do or say for my roommate/friend who's in a very quickly worsening mental health spiral and nursing a broken heart?