@Strawberrina, I have written several posts addressing your H’s abuse of you via his infidelity, dishonesty, false reconciliation, etc.
My take: Your H’s affair is ongoing. OW was very likely on your street to check if you were home from the trip. You spotted her, and when H returned you insisted that he drive to her house to read her the riot act. He probably couldn’t believe his luck that he actually had a pass from you to go there. She was there and he did go in, but not to chastise her. The clothes and bits were almost certainly things he had left at OW’s that he can now claim he retrieved from the office — a convenient cover for the time he actually spent at hers.
You wrote on 5/4 that he had made new efforts — coming home for lunch some days, arriving home from work at 5:00, more contributions at home, open access to phone, transparency re office goings-on, a 3-day getaway — and I assumed that those began after DDay 2. However, when a poster asked, you acknowledged that these actions actually began between DDays 1 and 2. He was putting on a charade to fool you and then showed up smelling of OW’s perfume. He had not ended his lying and cheating then, nor has he now. He is still putting on a charade to fool you.
So many of us have encouraged you to be proactive and assert effective consequences and strict requirements [send him away, must change jobs and go NC with OW, attend IC, among others], just as a counselor would advise. You won’t do it and you continue believing H, a practiced liar, manipulator and adulterer. He and OW are still together and they will absolutely find a way to continue meeting up with OW during his leave.
Your words from 5/6 are tragic: I’m also concerned that if he leaves current job, he will feel resentful towards me as I (in his mind) made him leave the job he likes and the OW which he admitted to me previously, he loves. If he cherishes you above all else, was truly devastated that he has hurt you, and valued your sense of safety, he would have already changed jobs and cut off OW on his own volition. He would feel zero resentment because it was he who trashed his job and marriage.
If you don’t prioritize your worth and peace of mind, you will eventually be diminished beyond recognition. I wish you well, @Strawberrina.