FWB wants to get back with ex

FWB wants to get with his ex

Soo, I'm generally a relationship person but after a rough breakup this last year, I was ready to just try new things and explore. I have a FWB that I've been talking to/seeing for about a month and a half. He's cool, we have great chemistry all around and we have a lot of fun. I'm still pretty new to the whole FWB thing but from day 1 he's been texting every day (which I'm totally okay with), being cute when we meet, sometimes making date suggestions, etc. Which confuses me because it sounds more like casually dating, yet he still calls us FWB. I figure he's leaning into the friends part of FWB, which is what I prefer anyways. Anyways, the other day we were talking and and he admitted that he's been thinking a lot about getting back with his ex. And having been with too many guys who were still pining for their ex when we got together, this hit me in a really sore spot. Like even my FWB isn't totally unattached, REALLY?! Can't I catch a break? But I did get really sad about it. Because he is cool and I could see myself casually dating him. When I told him my depression was bad the other day he asked if I wanted him to come over for cuddles, no sex.

I know I shouldn't care because it's FWB but it sucks that he wants someone else. He did say that even if they got back together he'd still want to be friends because he thinks I'm cool. I know I'm playing with fire here. But I feel like he’s been treating like more than just a hookup. And that plus the fact that we have actual real chemistry and amazing sex, how could I not start to get attached?

Is this normal for men in FWB situations? To still be able to treat the girl like she’s something more while still not really wanting more? Is he just filling a void?

He’s cooled off on the texting lately and I’m unsure if maybe he also realized we’re getting in a little deeper than expected, or if he’s just with his other FWB who gets jealous that he spends more time with me.