How do I control my body image issues around guys I like?

Hi!! So I made a post here about how I was handling my weight loss journey and it’s intersection with dating. And I’ve been doing good with it! I’ve been consistently losing the weight mainly by calorie deficit and “mild”(?) cardio. it’s like minimum 10k steps a day and then any workouts if I feel like doing them idk if that’s much or not but it’s been working for me. But I’ve been running into the issue of my mood shifting and my outlook on weight loss swaying whenever I see cute guys in Public. It’s just been such a stupid fucking issue but basically there have been SO many times when I’m feeling happy about myself and ok with how I look. And then I’ll see a cute guy in like the dining hall or something. Which just causes an overbearing feeling of “not being good enough” to date yet. Followed by an onslaught of negative self talk, feeling ugly, hating myself, and most of all wanting to starve myself because any insecurity with my weight just gets amplified. I know this sounds really dumb but it’s just been effecting me lately and I wanted to know if I could make this stop somehow. Like I wanna just have my healthy weight loss journey. I just felt the need to write this bc it didn’t happen for a while but it happened recently.