UpdauMy last post got deleted when I tried to update. Thoughts?

Sorry if you read my post and I’m rewriting it here. Just have to vent on how I feel.

My husband (we were long distance for a bit before marriage) and he called me one day to tell me a crazy story of his old college friend he knew for 10 years. She told him that she was seeing a guy from work and his ex wife contacted her to let her know he was still seeing her and sleeping with her. She opened up to my husband and even said she got an abortion but still wanted to see this guy. Anyway, my husband would include her into his friends group handouts and would dog sit her dog and she would pay him with food gifts cards. Anyway, once i moved with him I never heard of this girl again and he would tell me she’d reach out and he’d forget to reply vise versa. There was a time that he got a text asking for her house keys because she was locked out (he would dog sit and did it for his best friend too). I just can’t help but think “what if they had a thing for each other?” “What if he was with her her while I was away because she’d hang out with all his friends?” Now, since we got married of course his schedule with his friends changed up and he doesn’t see them as often. I get jealous and insecure about these things. Now, he did tell me they’re just friends and nothing ever happened between them. I feel like I’m trying to dig up clues to piss myself off and assume things that aren’t true out of jealousy and insecurity. I don’t have a problem with female friends but I’m curious as to why I never met her. I never bring this up to my husband but some days I’m cool and other days I eat myself alive overthinking. I hate being this way.

Update: I know I need to let it go. But why can’t I? Because I saw that he downloaded a dating app for a day when we were long distance (and that week I felt things off) I called him out on it and he said it was for his friend who gets no girls. Anyone that looks at this situation will tell you he is lying but I 90% believe him since this guy doesn’t get girls and when I met this guys dad he asked me if I have any friends who would date his son. But my question is why would he make the profile with his pictures and try and talk to girls to date his friend? It’s too sketchy for me. At the same time, I’ve heard of people doing this so I get it. And, he had the app for such a short period of time and didn’t get many matches. The whole friend group does this stuff for each other but I didn’t like it at all and that’s what makes me insecure. Another story was of him about to go to the strip club but didn’t bc it was closed since he knows how I feel about it. This all ties into my insecurities. Had none of the other incidents happened then I wouldn’t be feeling this way. He is transparent with a lot of things and open with his phone and insisted we share locations. He’s the type of guy to be caught in a situation where it all looks very bad but he’s telling the truth because I’ve witnessed it.